Tibero OLE DB User Guide - Technet

Transcription

Tibero OLE DB User Guide - Technet
—
Development and Operation
—
Tibero OLE DB User Guide
2014. 05. 16.
Development and Operation
Better Technology, Better Tomorrow
Table of Contents
1. Definition ..................................................................................................................................................................................................................4
1.1. What is OLE DB (Object Linking and Embedding, Database)? ..........................................................................................................4
1.2. ADO (ActiveX Data Objects) .......................................................................................................................................................................4
1.3. Role of OLE DB ..............................................................................................................................................................................................4
1.4. OLE DB Internal Structure ..........................................................................................................................................................................5
2. OLE DB Provider Installation and Environment Configuration ....................................................................................................................6
2.1. Checking Tibero OLE DB Driver.................................................................................................................................................................6
2.2. Registering Tibero OLE DB Driver .............................................................................................................................................................6
2.3. OLE DB Driver Connection .........................................................................................................................................................................7
2.4. Installing OLE DB in a Windows 64-bit Environment ..........................................................................................................................9
2.5. Testing Tibero OLE DB Integration in a Windows 64-bit Environment ........................................................................................ 11
2.6. Installing ODBC Using Tibero ODBC Installer ..................................................................................................................................... 11
2.7. Configuring Environment Variables for Debugging ........................................................................................................................... 14
3. Connection String ................................................................................................................................................................................................ 15
3.1. Configuration Items .................................................................................................................................................................................. 15
3.2. Description of Additional Items ............................................................................................................................................................. 15
3.3. Creating Connection Strings ................................................................................................................................................................... 16
4. ADO and .NET Provider Integration ................................................................................................................................................................ 16
4.1. ADO (ActiveX Data Objects) .................................................................................................................................................................... 16
4.2. Major ADO Objects ................................................................................................................................................................................... 17
4.3. Cursor Location .......................................................................................................................................................................................... 18
5. Special Features ................................................................................................................................................................................................... 19
5.1. Updatable Cursor ...................................................................................................................................................................................... 19
5.2. Schema Rowset .......................................................................................................................................................................................... 20
5.3. Connection Pooling ................................................................................................................................................................................... 20
6. Trouble Shooting ................................................................................................................................................................................................. 20
6.1. Error Message Handling .......................................................................................................................................................................... 20
6.2. Points to Consider when Installing IIS+MS Office (Excel) ................................................................................................................ 20
6.3. UTF8 Broken Characters .......................................................................................................................................................................... 21
6.4. Tbprov vs MSDTB ...................................................................................................................................................................................... 21
7. Adding Tibero DLL files in Visual Studio (C#) ............................................................................................................................................... 22
7.1. How to add Tibero.DbAccess.dll and EntLibContrib.Data.Tibero.dll ............................................................................................ 22
8. OLE DB Migration ................................................................................................................................................................................................ 23
8.1. Migrating from Oracle to Tibero ........................................................................................................................................................... 23
9. Examples................................................................................................................................................................................................................ 25
9.1. ASP Sample Source (SELECT) .................................................................................................................................................................. 25
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9.2. Procedure Request and CLOB Handling ............................................................................................................................................... 26
9.3. VBScript Sample Source (SELECT) ......................................................................................................................................................... 28
9.4. C# Sample Source (SELECT)..................................................................................................................................................................... 28
9.5. C# Sample Source 2 (Retrieving a data column name) .................................................................................................................... 30
9.6. ASP.NET WITH C# ....................................................................................................................................................................................... 30
9.7. C# WITH Enterprise Library..................................................................................................................................................................... 34
9.8. C# Named Parameter Sample ................................................................................................................................................................ 41
9.9. Decompiling C# (ildasm) .......................................................................................................................................................................... 42
9.10. C# (Procedure returns cursor-SYS_REFCURSOR) ............................................................................................................................. 42
9.11. C# (Procedure returns cursor - REF CURSOR) .................................................................................................................................. 43
9.12. ASP (BLOB Insert Sample) ..................................................................................................................................................................... 46
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Tibero OLE DB User Guide
This document describes the features of Tibero OLE DB and includes its definition, configuration, integration,
functions, error handling, and sample source.
1. Definition
1.1. What is OLE DB (Object Linking and Embedding, Database)?
ODBC enables applications to access databases through a common abstract API regardless of language, table
structure, or data type. Due to developments in IT, ODBC has become unsuitable when new methods are
used to design and build DB-based applications. In response, OLE DB, an open DB connection, was created.
OLE DB is a programing interface model that reifies the concept of Microsoft Universal Data Access (UDA).
UDA provides a function to access relational, non-relational, and hierarchical data using a single COM based
programing interface.
Tibero OLE DB Provider currently supports the Windows operating system. Tibero OLE DB Provider
guarantees performance and stability of the environment used by ADO or OLE DB based applications to
access the Tibero database. Tibero OLE DB Provider is compatible with the latest OLE DB and ADO
specifications so ADO or OLE DB developers can easily migrate applications to the Tibero environment.
Additionally, Tibero OLE DB Provider enables functions, such as PSM saving procedure and LOB, to be
utilized. Tibero OLE DB also fully supports the .NET environment using the Microsoft OLE DB.NET data
provider. When OLE DB .NET is used, it is possible to access a Tibero database using various .NET programing
languages.
1.2. ADO (ActiveX Data Objects)
While OLE DB is a technology that provides an interface to access a RDBMS or non-relational database, ADO
is an advanced version of the technology that enables data input and inquiries via the interface.
1.3. Role of OLE DB
OLE DB provides a comprehensive view of distributed data.
UDA can access non-SQL data (mail, text, and directory services) as well as SQL data using ADO and OLED.
OLE DB can use the same data connection as the existing ODBC. Accessing with OLE DB improves connection
speed by complementing the existing ODBC‘s deficiencies.
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(Excerpt) uda architecture
http://msdn.microsoft.com/en-us/library/windows/desktop/ms709836(v=vs.85).aspx
1.4. OLE DB Internal Structure
-
Initializes the OLE DB provider and configures the
environment.
More than one connection (Session) can be created after
receiving access information.
-
A session is a connection.
A session usually creates more than one command and
result table (Rowset).
-
A SQL statement that creates multiple Rowsets when
there are multiple SELECT statements.
-
A set of data (rows) from a database. Forward, reverse,
and specific row access are supported.
An application accesses the data source through OLE DB API in the following order.
1. Initializes an OLE DB.
2. Connects to a data source
3. Issues a command.
4. Processes the results.
5. Releases the data source object and uninitializes the OLE DB.
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2. OLE DB Provider Installation and Environment Configuration
2.1. Checking Tibero OLE DB Driver
To install Tibero OLE DB for Windows, the following files are required. Contact an administrator to receive
the files.
• odbc_driver_install.exe: Tibero ODBC Driver Installer provided by the ODBC administrator.
• vcredist.EXE: Install Microsoft Visual C++ 2005 Redistribution if necessary.
• libtbcli.dll: ODBC driver of Tibero
• libtbcli.lib: ODBC library of Tibero
• tbprov.dll: Tibero OLE DB Provider driver (tbprov5.dll for r67771 or above)
• tbprov.lib: Tibero OLE DB Provider library (tbprov5.dll for r67771 or above)
• msdtb.dll: Tibero OLE DB Provider(MSDTB) driver (tbprov5.dll for r67771 or above)
• msdtb.lib: Tibero OLE DB Provider(MSDTB) library (tbprov5.dll for r67771 or above)
The OLE DB driver or library can also be found in the $TB_HOME/client/win32/lib/oledb directory of the
Tibero engine.
2.2. Registering Tibero OLE DB Driver
Copy the Tibero OLE DB driver into the C:\Windows\system32 directory and enter the following commands
in the command line.
ODBC
OLE DB
libtbcli.dll
msdtb.dll (msdtb5.dll for Tibero 5 r67771 or above)
msdtb.pdb (may not exist depending on the release version)
tbprov.dll (msdtb5.dll for Tibero 5 r67771 or above)
tbprov.pdb (may not exist depending on the release version)
Registry Registration
Commands
[Description of the pdb file]
File with a PDB extension (Program Database)
- Debugging files
- The contents included in the PDB formatted file are local variable
name, source files name, source line number and source indexing.
Tibero.DbAccess.dll (Definition of .NET data type)
EntLibContrib.Data.Tibero.dll (Included when MS Enterprise Library is
used)
regsvr32 tbprov.dll (tbprov5.dll for Tibero 5 r67771 or above)
regsvr32 msdtb.dll (msdtb5.dll for Tibero 5 r67771 or above)
Registry Deregistration
Commands
regsvr32 /u tbprov.dll (tbprov5.dll for Tibero 5 r67771 or above)
regsvr32 /u msdtb.dll (msdtb5.dll for Tibero 5 r67771 or above)
Others
Register the ODBC using the ‘tbodbc_driver_installer_5_32.exe’ file. Location of the libtbcli.dll file must be
appended. (E.g., tbodbc_driver_installer_5_32.exe -i C:\Windows\system32)
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2.3. OLE DB Driver Connection
① Create a file on the desktop and name it tibero.udl.
② Double click the tibero.udl file and select [Provider] to see Tibero OLE DB Provider.
③ The following describes three ways to perform the connection test using the tibero.udl file.
Direct Connection using IP or Port in Location
Configure Tibero IP and PORT information, User Name, and Password to log onto the server. Click the Test
Connection button. (IP and Port must be separated by a comma.)
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[Example]
## OLEDB Connection String (using Tibero IP&Port)##
Connection String for Tibero OLE DB Provider (Default)
Provider=tbprov.Tbprov;Location=127.0.0.1,8629;User ID=sys;Password=tibero;
Connection String to replace ‘Microsoft OLE DB Provider for Oracle’
Provider=tbprov.MSDTB;Location=127.0.0.1,8629;User ID=sys;Password=tibero;
Using DSN of the ODBC source administrator or Alias of tbdsn.tbr
Tibero can be accessed by using the DSN of the ODBC source administrator or the alias of
"$TB_HOME/client/config/tbdsn.tbr". The applicable alias information can be found under [ODBC Source
Administrator] > [Alias of tbdsn.tbr].
[Example]
## OLEDB Connection String (using DSN or the alias in tbnet_alias.tbr file) ##
Connection String for Tibero OLE DB Provider (Default)
Provider=tbprov.Tbprov;Data Source=tibero;User ID=sys;Password=tibero;
Connection String to replace ‘Microsoft OLE DB Provider for Oracle’
Provider=tbprov.MSDTB;Data Source=tibero;User ID=sys;Password=tibero;
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Connection using IP, PORT, and DBNAME in Data Source (Tibero 5)
Access Tibero by setting the IP, PORT, and DB NAME (in this order). The items can be separated by commas.
## OLEDB Connection String##
Connection String for Tibero OLE DB Provider (Default)
Provider=tbprov.Tbprov;
Data Source='127.0.0.1,8629,tibero';User ID=sys;Password=tibero;
Connection String to replace ‘Microsoft OLE DB Provider for Oracle’
Provider=tbprov.MSDTB;
Data Source='127.0.0.1,8629,tibero'
2.4. Installing OLE DB in a Windows 64-bit Environment
The following is the process for registering the OLE DB driver in a Windows 64-bit environment. (Windows
2003, Windows 2008, etc.) Since the Windows 64-bit environment basically uses a 32-bit client library, an
additional step for configuring the 32-bit client library is required.
① Copy the files located in %TB_HOME%client\lib\win32\’ to ‘C:\Windows\SysWow64\’ .
ODBC
OLE DB
Others
libtbcli.dll
msdtb.dll (msdtb5.dll for Tibero 5 r67771 or above)
msdtb.pdb
tbprov.dll (tbprov5.dl l for Tibero 5 r67771 or above)
tbprov.pdb
Tibero.DbAccess.dll (.NET Provider)
EntLibContrib.Data.Tibero.dll (Included when MS Enterprise Library is
used)
② Register the tbprov and msdtb libraries using regsvr32.exe located in ‘C:\Windows\SysWow64\'.
(E.g., regsvr32 tbprov.dll, regsvr32 msdtb.dll) (regsvr32 tbprov5.dll, regsvr32 msdtb5.dll for Tibero 5 r67771
or above)
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③ Register OLE DB using the ‘tbodbc_driver_installer_5_64.exe’ file, and specify the path to the directory
where the libtbcli.dll file exists. (E.g., tbodbc_driver_installer_5_64.exe-i C:\Windows\SysWow64)
④ After the ODBC driver is installed, run the odbcad32 file located in the directory to register a DSN. (When the
file is run, the 32-bit ODBC Data Source Administrator screen appears.)
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2.5. Testing Tibero OLE DB Integration in a Windows 64-bit Environment
① Create the tibero.udl file in the C:\ directory.
② Run the following command after opening a command window.
C:\Windows\syswow64\rundll32.exe "C:\Program Files (x86)\Common Files\System\Ole DB\oledb32.dll",
OpenDSLFile C:\tibero.udl
● Note
A connection pooling function is provided by the driver. Tibero provides the connection pooling function for OLE
DB, ODBC, and .Net Framework Data Provider for Oracle, which are provided by MicroSoft. The following shows
how to use the connection pooling function.
//OLE DB Services=-1 (uses pooling)
//OLE DB Services=-2 (does not use pooling. Default Value)
Provider=tbprov.Tbprov;Data
Source='tibero';User
ID=sys;Password=tibero;
Services=-1
OLE
DB
** Since the default value of connection pooling depends on the development language, check the default value
before applying it. (In the above example, the default value of connection pooling is C#.)
2.6. Installing ODBC Using Tibero ODBC Installer
OS BIT
32 BIT
64 BIT
Location
Contact the administrator.
Contact the administrator.
Run the applicable installation file.
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Installer
TiberoODBC32_Setup.exe
TiberoODBC64_Setup.exe
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- Select a language.
- Select ‘Install’ and click the [Next] button to continue.
- Check the packs to be installed and click the [Next] button to continue.
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- Click the [Browse...] button and select the desired folder.
- After installation is complete, click the [Next] button.
- The installed ODBC and OLE DB drivers are now registered to Windows.
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- After the modules are successfully registered, the following screen appears.
2.7. Configuring Environment Variables for Debugging
When the following environment variables are specified in the system environment variable for debugging,
the logs can be checked.
Category
ODBC
OLE DB
Environment
Variable
TBCLI_LOG_DIR
TBCLI_LOG_LVL
TB_OLEDB_LOG
Description
Log creation directory
FATAL, ERROR, WARN, DEBUG, TRACE
0~4
Default : 0
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3. Connection String
The information required to access OLE DB are Provider, Data Source, Location, User ID, and Password.
3.1. Configuration Items
Basic Items
Additional Items
Provider Name
Provider, Data Source, Location, User ID, Password
Updatable Cursor, OLE DB Services
Tibero 5 before r67770
Tibero 5 r67770 and above
tbprov.Tbprov
No changes
tbprov.Tbprov.1
tbprov.Tbprov.5
tbprov.MSDTB
No changes
tbprov.MSDTB.1
tbprov.MSDTB.5
Data Source Name
- The name registered in the ODBC Data Source Administrator
- tibero5 Data Source=ip,port, dbname
- tibero4 Data Source=ip,port
Location
- IP and PORT are required. Separate IP and PORT with a comma.
[Example]
Provider=tbprov.Tbprov.1;Data Source=tibero;User ID=tibero;Password=tmax
Provider=tbprov.Tbprov.1;Data Source=127.0.0.1,8629,tibero;
User ID=tibero;Password=tmax
Provider=tbprov.MSDTB.1;Location=192.168.1.83,8629;User ID=tibero;Password=tmax
3.2. Description of Additional Items
Item
Updatable Cursor
Option
True | False
Default
False
Description
Option to use updatable cursors
OLE DB Services
-1 | -2
-1
Option to use connection pooling
function
-1: uses pooling
-2: does not use pooling
Example
“Provider=tbprov.Tbprov.1;Data Source=tibero;User ID=tibero;Password=tmax;
Updatable Cursor=True;OLE DB Services=-2”
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3.3. Creating Connection Strings
- How to Use: Extract the connection string by creating a file with the UDL extension. (E.g., a.udl)
- Problems: Configuring extraneous items may generate complex strings.
- Recommendation: Use only required items.
4. ADO and .NET Provider Integration
4.1. ADO (ActiveX Data Objects)
ADO (ActiveX Data Object) is an interface that integrates with a database developed by Microsoft. Multiple
tasks can be carried out after accessing the database using the ADO component.
– A set of COM objects to access the database.
– A connecting layer that links the user’s programing language with OLE DB.
– It is installed automatically when the Windows operating system is installed.
– It is available in ASP, PHP, and VB.
– Users have the option to use the simplified ADO API rather than the complicated OLE DB API for
development.
– It is integrated with diverse script languages so can be developed in multiple environments.
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4.2. Major ADO Objects
Object
Connection
Description
Used to connect to a database.
Set conn=Server.CreateObject(“ADODB.Connection”);
Recordset
Used to return data from a lookup query.Set rs =
Server.CreateObject(“ADODB.Recordset”)
rs.open “select * from emp”,conn
Command
This object is used for database connection, command, or query execution. It is
generally used when a query that includes procedure execution or parameters is
executed.
Set Cmd = Server.CreateObject("ADODB.Command")
with Cmd
.ActiveConnection = objConn
.CommandType = adCmdStoredProc
.CommandText = "ADD"
…
End with
Set Cmd = Nothing
Transaction
The transactions being used are located between .BeginTrans of the connection
object and the .CommitTrans method request.
myConnection.BeginTrans
While Not myRecordset.EOF
mcounter = mcounter + 1
myRecordset.Update
myRecordset.MoveNext
Wend
myConnection.CommitTrans
myRecordset.Close
myConnection.Close
Property
Contains the dynamic properties of the ADO object.
set prop=Server.CreateObject("ADODB.Property")
for each prop in rs.Properties
response.write("Attr:" & prop.Attributes & "<br>")
response.write("Name:" & prop.Name & "<br>")
response.write("Value:" & prop.Value & "<br>")
next
Field
The ADO Field object contains information about columns in the Recordset object.
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set f=Server.CreateObject("ADODB.Field")
for each f in rs.Fields
response.write("Attr:" & f.Attributes & "<br>")
response.write("Name:" & f.Name & "<br>")
response.write("Value:" & f.Value & "<br>")
Next
Provides information about the stored procedure or the parameters used in a query.
(Parameter Type: input, output, input/output, and return)
Parameter
set comm=Server.CreateObject("ADODB.Command")
set para=Server.CreateObject("ADODB.Parameter")
para.Type=adVarChar
para.Size=20
para.Direction=adParamInput
para.Value=username
comm.Parameters.Append para
Error
Saves errors that occur during execution in the errors collection.
for each objErr in objConn.Errors
response.write("<p>")
response.write("Description: ")
response.write(objErr.Description & "<br>")
response.write("Help context: ")
response.write(objErr.HelpContext & "<br>")
response.write("Help file: ")
response.write(objErr.HelpFile & "<br>")
response.write("Native error: ")
response.write(objErr.NativeError & "<br>")
response.write("Error number: ")
response.write(objErr.Number & "<br>")
response.write("Error source: ")
response.write(objErr.Source & "<br>")
response.write("SQL state: ")
response.write(objErr.SQLState & "<br>")
response.write("</p>")
next
Record
Holds one row in a file, directory, or Recordset in the file system.
countfields=rec.Fields.Count
4.3. Cursor Location
A cursor location can be configured by connection or Recordset.
adUseNode
- OBSOLETE (Exists only for backward compatibility).
- Value 1
adUseServer (Default)
- Whenever a user goes to another row, it brings data from OLE DB.
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- Better performance when only some of rows are selected. (The total memory usage is less.)
- Data cannot be selected after disconnecting.
- Updatable cursors are supported.
- Value 2
adUseClient
- It brings all data from OLE DB and saves it in ADO to use whenever a user goes to another row using the
ADO
function.
- Because necessary data is already selected, the data is accessible even after disconnecting.
- Updatable cursors are not supported.
-Value 3
[Usage Example-vbscript]
Dim conn, rs, sql
Set conn = CreateObject("ADODB.Connection")
conn.Open "Provider=tbprov.Tbprov.1;Data Source=4;User ID=tibero;Password=tmax;"
conn.CursorLocation = adUseClient 'adUseServer = 2, adUseClient = 3
Set rs = CreateObject("ADODB.RecordSet")
sql = "select sysdate from dual"
rs.Open sql, conn
While Not rs.EOF
WScript.Echo rs("sysdate")
rs.MoveNext
Wend
rs.Close()
Set rs = Nothing
Set conn = Nothing
5. Special Features
5.1. Updatable Cursor
As a result of queries, it modifies table data and applies it to the server. A query is sent with a rowid by
default. A query that cannot have a rowid attached cannot be an updatable cursor. Addition, deletion, and
modification are written with DML using rowid and sent to servers.
Adding a new row
The added row is not saved in the result table.
Deleting a row
The deleted row is flagged for deletion.
Modifying the data of a row
The modified data can be checked immediately.
[Example-PHP]
$conn = new COM("ADODB.Connection");
$conn->Open("Provider=tbprov.Tbprov.1; Data Source=tibero; User ID=SYS;
Password=tibero;Updatable Cursor=True;“);
$rs = new COM("ADODB.Recordset");
$rs->CursorLocation = adUseServer;
$rs->Open("for_member", $conn, adOpenKeyset, adLockPessimistic, adCmdTable);
$rs->MoveNext();
$rs->Fields("EMAIL")->value = "test@tibero.com";
$rs->Fields("PASSWORD")->value = "tmax123";
$rs->Fields("NAME")->value = “TESTUSER”;
$rs->Update();
$rs->Close();
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5.2. Schema Rowset
It shows the schema information of the database (tables and procedures) in the form of a table. Schema Rowset
usually queries the static view of the database, extracts the target information, and stores and extracts the
target schema information in OLE DB.
[Example-PHP]
$conn = new COM("ADODB.Connection");
$conn->Open(“Provider=tbprov.Tbprov.1; …”);
$arr[0] = "";
$arr[1] = “SCOTT“;
$arr[2] = “EMP";
$rs = new COM("ADODB.Recordset");
$rs->CursorLocation = adUseClient;
$rs = $conn->OpenSchema(adSchemaPrimaryKeys, $arr);
5.3. Connection Pooling
It saves existing connections and reuses them when the same account makes repeated connections. This reduces
the time to connect.
How to Configure
Add OLE DB services to the connection string.
OLE DB Services=-1 (uses pooling)
OLE DB Services=-2 (does not use pooling.)
For PHP, configure to use it unconditionally
6. Trouble Shooting
6.1. Error Message Handling
Current cursor is not updatable (tberr 2135)
Error 1
Error 2
This occurs when an updatable cursor is inactive
How to respond: add “Updatable Cursor=True” to the connection string.
Updatable cursor query is unavailable.
Target:
- When the query cannot use a rowid.
- When the “join string” is in a query that defines “view”.
Resolution:
- Write a replacement query.
- Manually write DML to modify.
6.2. Points to Consider when Installing IIS+MS Office (Excel)
The IIS server operates abnormally when Excel or other office programs are installed.
[Error 1] The ASP page displays the error ‘Cannot find provider’.
[Error 2] If Tibero OLE DB or ODBC is reinstalled and tested when error 1 occurs, the session between ASP
and Tibero disconnects immediately after connecting.
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[Resolution]
Remove the IIS server to reinstall.
(Installing office programs updates the DLL and ODBC settings for the IIS server.)
6.3. UTF8 Broken Characters
Application ---------- enterprise library -------- tboledb ------- tbcli --------- tibero server
The error can occur when an application displays UTF8 data from the database as UCSI on the screen. This is
because UTF 8 is bound wchar (ucs2 unicode) when Oracle sends UTF8 data to the enterprise library.
(Resolution 1) Replace char and varchar with nchar and nvarchar.
(Resolution 2) Set TB_NLS_LANG to the character set used by the Windows system executing the application.
(Resolution 3) Replace UTF8 with wchar(ucs2 unicode)in the application.
(Resolution4) Configure the environment variable that forcefully binds char and varchar to wchar as follows.
(Tibero5 r70330 or above)
FORCED_USE_WCHAR=1
6.4. Tbprov vs MSDTB
Tbprov
MSDTB
Binary that meets the OraOLEDB’s data type specifications.
Binary that meets the MSDAORA’s data type specifications.
Data Types of ADO
Tibero type
NUMBER
NUMBER(p,s)
CHAR
VARCHAR
ADO type (Tbprov)
adDouble=5
adNumeric=131
adWChar=130
adVarWChar=202
ADO type (MSDTB)
adVarNumeric=139
adNumeric=131
adChar=129
adVarChar=200
ParameterDirectionEnum Values
Specifies whether the Parameter represents an input parameter, an output parameter,
both an input and an output parameter, or the return value from a stored procedure.
Constant
Value Description
adParamUnknown
0
Direction is unknown
adParamInput
1
Input parameter
adParamOutput
2
Output parameter
adParamInputOutput 3
Both input and output parameter
adParamReturnValue 4
Return value
[Constant Value of Data Type]
Constant
adEmpty
adSmallInt
adInteger
adSingle
adDouble
adCurrency
adDate
day.
adBSTR
adIDispatch
Value
0
2
3
4
5
6
7
Description
No value
A 2-byte signed integer.
A 4-byte signed integer.
A single-precision floating-point value.
A double-precision floating-point value.
A currency value
The number of days since December 30, 1899 + the fraction of a
8
9
A null-terminated character string.
A pointer to an IDispatch interface
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Currently not supported by ADO.
adError
10
A 32-bit error code
adBoolean
11
A boolean value.
adVariant
12
An Automation Variant. Note:Currently not supported by ADO.
adIUnknown
13
A pointer to an IUnknown interface on a COM object. Note:
Currently not supported by ADO.
adDecimal
14
An exact numeric value with a fixed precision and scale.
adTinyInt
16
A 1-byte signed integer.
adUnsignedTinyInt
17
A 1-byte unsigned integer.
adUnsignedSmallInt 18
A 2-byte unsigned integer.
adUnsignedInt19
A 4-byte unsigned integer.
adBigInt
20
An 8-byte signed integer.
adUnsignedBigInt
21
An 8-byte unsigned integer.
adFileTime
64
The number of 100-nanosecond intervals since January 1,1601
adGUID
72
A globally unique identifier (GUID)
adBinary
128
A binary value.
adChar
129
A string value.
adWChar
130
A null-terminated Unicode character string.
adNumeric
131
An exact numeric value with a fixed precision and scale.
adUserDefined132
A user-defined variable.
adDBDate
133
A date value (yyyymmdd).
adDBTime
134
A time value (hhmmss).
adDBTimeStamp135
A date/time stamp (yyyymmddhhmmss plus a fraction in billionths).
adChapter
136
A 4-byte chapter value that identifies rows in a child rowset
adPropVariant138
An Automation PROPVARIANT.
adVarNumeric 139
A numeric value (Parameter object only).
adVarChar
200
A string value (Parameter object only).
adLongVarChar201
A long string value.
adVarWChar
202
A null-terminated Unicode character string.
adLongVarWChar
203
A long null-terminated Unicode string value.
adVarBinary 204
A binary value (Parameter object only).
adLongVarBinary
205
A long binary value.
AdArray
0x2000 A flag value combined with another data type constant.
Indicates an array of that other data type.
7. Adding Tibero DLL files in Visual Studio (C#)
7.1. How to add Tibero.DbAccess.dll and EntLibContrib.Data.Tibero.dll
Select [Solution Explorer] > [Reference] > [Add Reference]
Select Tibero.DbAccess.dll and EntLibContrib.Data.Tibero.dll in [Add Reference] > [Browse].
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The following lines must be included in the source code. (C#)
using EntLibContrib.Data.Tibero;
using Tibero.DbAccess;
8. OLE DB Migration
8.1. Migrating from Oracle to Tibero
Oracle
Tibero
OracleConnection
OleDbConnectionTbr
OracleCommand
OleDbCommandTbr
OracleDataReader
OleDbDataReader
OracleDataAdapter
OleDbDataAdapterTbr
OracleDbType
OleDbTypeTbr
OracleParameter
OleDbParameterTbr
OracleCommandBuilder
OleDbCommandBuilderTbr
OracleTransaction
OleDbTransaction
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OracleLob
OleDbYpeTbr.LongVarChar
(Corresponding CLOB)
or
OleDbTypeTbr.LongVarBinary
(Corresponding BLOB)
[Usage Instructions]
After reading from a reader, use GetString to read.
E.g.,
if (reader.Read()) {
string clob = reader.GetString(0);
..
}
Add the Tibero OLE DB settings to [web.config] or [app.config].
<connectionStrings>
<add name="oracle_con" connectionString="Data Source=CENT64_JP2;Persist
Info=True;User ID=scott;Password=tiger"
providerName="System.Data.OracleClient" />
<add
name="tibero5_odbc"
connectionString="DRIVER={Tibero
5
Driver};SERVER=127.0.0.1;PORT=8629;DB=tibero;UID=sysadm;PWD=sysadm"
providerName="System.Data.Odbc" />
<add name="tibero5_oledb"
connectionString="Provider=tbprov.Tbprov.1;
Data Source=tibero;User ID=tibero;
Password=tmax;
Pooling=True;Max Pool Size=50;Min Pool Size=2;Connection Lifetime=0"
providerName="System.Data.OleDb" />
</connectionStrings>
Security
ODBC
Add the following settings when Enterprise Library is used and accessed by applications.
[App.config Example]
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="dataConfiguration"
type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings,
Microsoft.Practices.EnterpriseLibrary.Data" />
</configSections>
<dataConfiguration defaultDatabase="tibero">
<providerMappings>
<add databaseType="EntLibContrib.Data.Tibero.TiberoDatabase,
EntLibContrib.Data.Tibero, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"
name="Tibero.DbAccess" />
</providerMappings>
</dataConfiguration>
<connectionStrings>
<add name="tibero"
connectionString="Provider=tbprov.Tbprov.1;Data
Source=tibero5;User
ID=sys;Password=tibero;Pooling=True;Max
Pool
Size=50;Min
Pool
Size=2;Connection
Lifetime=0"
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providerName="Tibero.DbAccess" />
</connectionStrings>
</configuration>
Oracle
selectCmd.Parameters.Add("rs_Lst",
OracleDbType.RefCursor).Direction=
ParameterDirection.Output;
OracleParameter a =
new OracleParameter("i_fromdate", fromdate);
a.Direction = ParameterDirection.Input;
a.OracleType = OracleType.VarChar;
Tibero
OleDbCommandTbr selectCmd =
new OleDbCommandTbr();
selectCmd.Connection = oConn;
selectCmd.CommandType =
CommandType.StoredProcedure;
selectCmd.CommandText =
"PKG_CRM_AnalysisTBR.Get_Cust_Crm_Sex_List
selectCmd.Parameters.Add("rs_Lst",
OleDbTypeTbr.Cursor).Direction =
ParameterDirection.Output;
OleDbParameterTbr a =
new OleDbParameterTbr("i_fromdate", fromdate);
a.Direction = ParameterDirection.Input;
a.OleDbType = OleDbTypeTbr.VarChar;
OracleParameter b =
new OracleParameter ("o_rc", DBNull.Value);
b.Direction = ParameterDirection.Output;
b.OracleType = OracleType.RefCursor;
OleDbParameterTbr b =
new OleDbParameterTbr("o_rc", DBNull.Value);
b.Direction = ParameterDirection.Output;
b.OleDbType = OleDbTypeTbr.Cursor;
selectCmd.Parameters.Add(a);
selectCmd.Parameters.Add(b);
selectCmd.Parameters.Add(a);
selectCmd.Parameters.Add(b);
The ‘Bind by name’ function (Supported in the .NET provider layer. Unsupported in ODBC)
OleDbCommandTbr oCmd = new OleDbCommandTbr();
oCmd.Connection = oConn;
oCmd.CommandType = CommandType.Text;
oCmd.CommandText = "insert into aaa(aa,bb) values (:aa,:bb)";
oCmd.Parameters.Add(new OleDbParameterTbr("bb", "bb"));
oCmd.Parameters.Add(new OleDbParameterTbr("aa", "aa"));
9. Examples
9.1. ASP Sample Source (SELECT)
<%@ Language=VBScript %>
<%Option Explicit%>
<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
</HEAD>
<BODY>
<table style="font-size:10pt" border="1">
<%
Dim Con, Rs
Set Con = Server.CreateObject ("ADODB.Connection")
Con.Open
"Provider=tbprov.Tbprov.1;Password=tibero;Persist
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Info=True;User
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ID=SYS;Data Source=tibero"
// Open the .UDL file with a text viewer to copy the contents.
Set Rs = Con.Execute ("Select * From user_objects")
while not Rs.eof
%>
<TR>
<TD><%=Rs("OBJECT_NAME")%></TD>
<TD><%=Rs("OBJECT_ID")%></TD>
<TD><%=Rs("OBJECT_TYPE")%></TD>
<TD><%=Rs("OBJECT_TYPE_NO")%></TD>
<TD><%=Rs("CREATED")%></TD>
<TD><%=Rs("STATUS")%></TD>
<TD><%=Rs("TEMPORARY")%></TD>
</TR>
<%
rs.movenext
wend
Set Rs = Nothing
Con.Close
Set Con = Nothing
%>
</table>
</BODY>
</HTML>
9.2. Procedure Request and CLOB Handling
[Table]
create table notice (seq number, contents clob);
[Procedure]
CREATE or replace PROCEDURE UPDATE_NOTICE
(
V_SEQ IN number
, V_CONTENTS IN CLOB
) AS
loba clob
BEGIN
insert into notice(SEQ, CONTENTS) values(V_SEQ, EMPTY_CLOB());
select contents into loba from notice where seq=v_seq;
dbms_lob.write(loba,length(v_contents),1,v_contents);
COMMIT;
END;
[ASP]
<%@ CodePage=51949 Language="VBScript"%>
<%
Set objConn = server.CreateObject("ADODB.Connection")
‘objConn.Open
"Provider=tbprov.Tbprov.1;Data
Source=tibero;User
ID=tibero;Password=tmax;"
objConn.Open "Provider=MSDASQL;DSN=tibero;UID=tibero;PWD=tmax;"
Set cmd= Server.CreateObject("ADODB.Command")
contents = "aaaaaaaaaaaaaaaaaaaaaa"
with cmd
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set .ActiveConnection = objConn
.CommandType
= 4
.CommandText
= "UPDATE_NOTICE"
.Parameters.Append .CreateParameter("@V_SEQ",3, 1, 4)
.Parameters.Append
.CreateParameter("@V_CONTENTS",
Len(contents))
.Parameters("@V_SEQ") = 4
.Parameters("@V_CONTENTS") = contents
.Execute
end with
201,
1,
Set cmd = Nothing
objConn.Close
response.Write("sql : " & Sql & "<br>")
%>
[CLOB SELECT]
<%
Dim Con, Rs, strQry
Set Con = Server.CreateObject ("ADODB.Connection")
Con.Open "Provider=MSDASQL;DSN=tibero;UID=tibero;PWD=tmax;"
Set Rs = Server.CreateObject("ADODB.Recordset")
Function CLOBRead(pLen, seq)
Dim K
Dim strMok
Dim strLast
Dim strReturn
Dim Res
strMok
= int(Clng(pLen) / 2000)
strLast
= int(strMok + 1)
Set Res = Server.CreateObject("ADODB.Recordset")
For K = 1 To strLast
sQuery = ""
sQuery = sQuery & " SELECT DBMS_LOB.SUBSTR(CONTENTS, 2000, 2000 * (" & K & "
- 1) + 1) MEMO FROM NOTICE where seq=" & seq & vbCrLf
Res.Open sQuery, Con
strReturn = strReturn & Res("memo")
Res.Close
Next
Set Res = Nothing
CLOBRead = strReturn
End Function
strQry = "SELECT DBMS_LOB.GETLENGTH(contents) CONTENT_LENGTH FROM NOTICE WHERE seq=4"
Rs.Open strQry, Con, 3
content = CLOBRead(Rs.Fields("CONTENT_LENGTH"), 4)
%>
<%=content%>
<%
Set Rs = Nothing
Con.Close
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Set Con = Nothing
%>
9.3. VBScript Sample Source (SELECT)
Dim conn, rs, sql
Set conn= CreateObject("ADODB.Connection")
conn.Open"Provider=tbprov.Tbprov.1;Data Source=tibero;
User ID=sys;Password=tibero;"
conn.CursorLocation= adUseClient 'adUseServer= 2, adUseClient= 3
Set rs= CreateObject("ADODB.RecordSet")
sql= "select sysdate from dual"
rs.Opensql, conn
While Not rs.EOF
WScript.Echors("sysdate")
rs.MoveNext
Wend
rs.Close()
Set rs= Nothing
Set conn= Nothing
9.4. C# Sample Source (SELECT)
//Copyright (C) Microsoft Corporation. All rights reserved.
// OleDbSample.cs
// To build this sample from the command line, use the command:
// csc oledbsample.cs
using
using
using
using
System;
System.Data;
System.Data.OleDb;
System.Xml.Serialization;
public class MainClass
{
public static void Main ()
{
string strAccessConn = "Provider=tbprov.Tbprov.1;
Data Source=tibero;User ID=sys;Password=tibero";
Console.WriteLine("Connection.....");
string strAccessSelect = "SELECT * FROM test3";
// Create the dataset and add the Categories table to it:
DataSet myDataSet = new DataSet();
OleDbConnection myAccessConn = null;
try
{
myAccessConn = new OleDbConnection(strAccessConn);
}
catch(Exception ex)
{
Console.WriteLine("Error: Failed to create a database
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connection. \n{0}", ex.Message);
return;
}
try
{
OleDbCommand myAccessCommand =
new OleDbCommand(strAccessSelect,myAccessConn);
OleDbDataAdapter myDataAdapter =
new OleDbDataAdapter(myAccessCommand);
myAccessConn.Open();
myDataAdapter.Fill(myDataSet,"test3");
}
catch (Exception ex)
{
Console.WriteLine("Error: Failed to retrieve the required data
from the DataBase.\n{0}", ex.Message);
return;
}
finally
{
myAccessConn.Close();
}
// A dataset can contain multiple tables, so let's get them all
// into an array:
DataTableCollection dta = myDataSet.Tables;
foreach (DataTable dt in dta)
{
Console.WriteLine("Found data table {0}", dt.TableName);
}
// The next two lines show two different ways you can get the
// count of tables in a dataset:
Console.WriteLine("{0} tables in data set", myDataSet.Tables.Count);
Console.WriteLine("{0} tables in data set", dta.Count);
// The next several lines show how to get information on a
// specific table by name from the dataset:
Console.WriteLine("{0} rows in Categories table",
myDataSet.Tables["test3"].Rows.Count);
// The column info is automatically fetched from the database, so
// we can read it here:
Console.WriteLine("{0} columns in Categories table",
myDataSet.Tables["test3"].Columns.Count);
DataColumnCollection drc = myDataSet.Tables["test3"].Columns;
int i = 0;
foreach (DataColumn dc in drc)
{
// Print the column subscript, then the column's name and its
// data type:
Console.WriteLine("Column name[{0}] is {1}, of type
{2}",i++ , dc.ColumnName, dc.DataType);
}
DataRowCollection dra = myDataSet.Tables["test3"].Rows;
foreach (DataRow dr in dra)
{
// Print the CategoryID as a subscript, then the CategoryName:
Console.WriteLine("CategoryName[{0}] is {1}", dr[0], dr[1]);
}
}
}
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9.5. C# Sample Source 2 (Retrieving a data column name)
using System;
using System.Data;
using System.Data.OleDb;
class TableAnalysis
{
static void Main(string[] args)
{
//data source=name
string sql =
"Provider=tbprov.Tbprov.1;User ID=tibero;Password=tmax;
Data Source=tibero;Persist Security Info=True";
//location=ip,port
//string sql = "Provider=tbprov.Tbprov;Password=tmax;
User ID=tibero;Location=127.0.0.1,8629;Persist Security Info=True";
OleDbConnection conn = new OleDbConnection(sql);
try
{
conn.Open();
//Connect to database
OleDbCommand cmd = new OleDbCommand();
cmd.CommandText = "select * from all_tables"; // Table
cmd.CommandType = CommandType.Text;
//Search query
cmd.Connection = conn;
//select * from all_tables Result
OleDbDataReader read = cmd.ExecuteReader();
Console.WriteLine("***** ALL_TABLES *****");
for (int i = 0; i < read.FieldCount; i++)
{
Console.WriteLine("Field Name : {0} \n", read.GetName(i));
}
Console.WriteLine("Total number of fields" + read.FieldCount);
read.Close();
}
catch (Exception ex)
{
Console.WriteLine("Error{0}", ex.Message);
}
finally
{
if (conn != null)
{
conn.Close();
//Disconnect from database
Console.WriteLine("Database disconnected..");
}
}
}
}
9.6. ASP.NET WITH C#
[Web.config]
<?xml version="1.0"?>
<configuration>
<!—Previous Method-->
<appSettings>
<add
key="ConnectionString"
value="Provider=tbprov.Tbprov;User
ID=tibero;Password=tmax;Location=127.0.0.1,8629;Persist Security Info=True"/>
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<add
key="ConnectionString2"
value="Provider=tbprov.Tbprov;User
ID=tibero;Password=tmax;Data Source=tibero;Persist Security Info=True"/>
</appSettings>
<!—Current Method-->
<connectionStrings>
<add name="oracle_con" connectionString="Data Source=CENT64_JP2;Persist Security
Info=True;User ID=scott;Password=tiger"
providerName="System.Data.OracleClient" />
<add
name="tibero5_odbc"
connectionString="DRIVER={Tibero
5
ODBC
Driver};SERVER=127.0.0.1;PORT=8629;DB=tibero;UID=tibero;PWD=tmax"
providerName="System.Data.Odbc" />
<add
name="tibero5_oledb"
connectionString="Provider=tbprov.Tbprov.1;Data
Source=tibero;User ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool
Size=2;Connection Lifetime=0"
providerName="System.Data.OleDb" />
<add
name="tibero5_oledblocation"
connectionString="Provider=tbprov.Tbprov.1;Location=127.0.0.1,8629;User
ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool Size=2;Connection
Lifetime=0"
providerName="System.Data.OleDb" />
</connectionStrings>
<system.web>
<compilation defaultLanguage="c#" debug="true" targetFramework="4.0"/>
<trace
enabled="false"
requestLimit="10"
pageOutput="false"
traceMode="SortByTime" localOnly="true"/>
<globalization requestEncoding="utf-8" responseEncoding="utf-8"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>
<xhtmlConformance mode="Legacy"/>
</system.web>
</configuration>
[WebForm1.aspx]
<%@
Page
language="c#"
Codebehind="WebForm1.aspx.cs"
AutoEventWireup="false"
Inherits="Tutorial1.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
<title>WebForm1</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1"/>
<meta name="CODE_LANGUAGE" content="C#"/>
<meta name="vs_defaultClientScript" content="JavaScript"/>
<meta
name="vs_targetSchema"
content="http://schemas.microsoft.com/intellisense/ie5"/>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:DataGrid id="myDataGrid" style="Z-INDEX: 101; LEFT: 136px;
POSITION: absolute; TOP: 176px"
runat="server"
BorderColor="Tan"
BorderWidth="1px"
BackColor="LightGoldenrodYellow" CellPadding="2"
GridLines="None" ForeColor="Black">
<SelectedItemStyle
ForeColor="GhostWhite"
BackColor="DarkSlateBlue"></SelectedItemStyle>
<AlternatingItemStyle BackColor="PaleGoldenrod"></AlternatingItemStyle>
<headerStyle Font-Bold="True" BackColor="Tan"></headerStyle>
<FooterStyle BackColor="Tan"></FooterStyle>
<PagerStyle
HorizontalAlign="Center"
ForeColor="DarkSlateBlue"
BackColor="PaleGoldenrod">
</PagerStyle>
</asp:DataGrid>
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</form>
</body>
</html>
[WebForm1.aspx.cs]
using
using
using
using
System;
System.Collections;
System.ComponentModel;
System.Data;
using
using
using
using
using
using
using
using
System.Drawing;
System.Web;
System.Web.SessionState;
System.Web.UI;
System.Web.UI.WebControls;
System.Web.UI.HtmlControls;
System.Data.SqlClient;
System.Data.OleDb;
namespace Tutorial
{
/// <summary>
/// Summary description for WebForm1.
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid myDataGrid;
private void callNormalOleDbCall()
{
string
connectionString
=
System.Configuration.ConfigurationManager.ConnectionStrings["tibero5_oledb"].Connecti
onString;
string
providername
=
System.Configuration.ConfigurationManager.ConnectionStrings["tibero5_oledb"].Provider
Name;
/*
* Previous method to retrieve connection string information.
* web.config
<appSettings>
<add
key="ConnectionString"
value="Provider=tbprov.Tbprov;User
ID=tibero;Password=tmax;Location=127.0.0.1,8629;Persist Security Info=True"/>
<add
key="ConnectionString2"
value="Provider=tbprov.Tbprov;User
ID=tibero;Password=tmax;Data Source=tibero;Persist Security Info=True"/>
</appSettings>
*/
//string
connectionString
=
(string)System.Configuration.ConfigurationManager.AppSettings["ConnectionString"];
Response.Write(connectionString + "<br />"); // Display
/*
* Currently recommended method to retrieve connection sting information.
* web.config
<connectionStrings>
<add
name="oracle_con"
connectionString="Data
Source=CENT64_JP2;Persist
Security Info=True;User ID=scott;Password=tiger"
providerName="System.Data.OracleClient" />
<add name="tibero5_odbc"
connectionString="DRIVER={Tibero
5
ODBC
Driver};SERVER=127.0.0.1;PORT=8629;DB=tibero;UID=tibero;PWD=tmax"
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providerName="System.Data.Odbc" />
<add name="tibero5_oledb"
connectionString="Provider=tbprov.Tbprov.1;Data
Source=tibero;User
ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool Size=2;Connection
Lifetime=0"
providerName="System.Data.OleDb" />
</connectionStrings>
*/
if (String.Compare(providername, "System.Data.OleDb", true) == 0)
{
System.Data.OleDb.OleDbConnection myConnection =
new System.Data.OleDb.OleDbConnection(connectionString);
System.Data.OleDb.OleDbDataReader reader = null;
System.Data.OleDb.OleDbCommand myCommand =
new System.Data.OleDb.OleDbCommand("select sysdate from dual", myConnection);
myCommand.CommandType = CommandType.Text;
try
{
myConnection.Open();
reader = myCommand.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
else if (String.Compare(providername, "System.Data.Odbc", true) == 0)
{
//System.Data.Odbc
System.Data.Odbc.OdbcConnection myConnection =
new System.Data.Odbc.OdbcConnection(connectionString);
System.Data.Odbc.OdbcDataReader reader = null;
//Procedure call method
System.Data.Odbc.OdbcCommand myCommand =
new System.Data.Odbc.OdbcCommand("select sysdate from dual",
myConnection);
myCommand.CommandType = System.Data.CommandType.Text;
try
{
myConnection.Open();
reader = myCommand.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
else
{
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System.Data.SqlClient.SqlConnection myConnection =
new System.Data.SqlClient.SqlConnection(connectionString);
System.Data.SqlClient.SqlDataReader reader = null;
//Procedure call method
System.Data.SqlClient.SqlCommand myCommand =
new System.Data.SqlClient.SqlCommand("GetData", myConnection);
myCommand.CommandType = System.Data.CommandType.StoredProcedure;
try
{
myConnection.Open();
reader = myCommand.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
}
private void Page_Load(object sender, System.EventArgs e)
{
if(!Page.IsPostBack)
{
callNormalOleDbCall();
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
9.7. C# WITH Enterprise Library
Enterprise Library is an open source framework provided by Microsoft. Enterprise Library is available at the
following website.
Microsoft Enterprise Library is a collection of reusable application blocks designed to assist software developers
with common enterprise development challenges. This release includes Caching Block, Cryptography Block, Data
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Access Block, Exception Handling Block, Logging Block, Policy Injection Block, Security Block, Validation Block, and
Unity.
http://msdn.microsoft.com/en-US/library/ff632023.aspx
Select [Visual Studio] > [Solution Explorer] > [References] > [Add Reference].
When Enterprise Library Data Access Application Block is selected in the [Add Reference] window, data access
functions can be used.
[Add the following code to C#]
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using Microsoft.Practices.EnterpriseLibrary.Data;
[App.config]
<?xml version="1.0"?>
<configuration>
<!—- The following dataConfiguration tag can only be recognized when
enterpriselibrary is declared in configSections -->
<configSections>
<section name="dataConfiguration"
type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings,
Microsoft.Practices.EnterpriseLibrary.Data" />
</configSections>
<dataConfiguration defaultDatabase="tibero5_oledb" />
<connectionStrings>
<add name="oracle_con" connectionString="Data Source=CENT64_JP2;Persist Security
Info=True;User ID=scott;Password=tiger"
providerName="System.Data.OracleClient" />
<add name="tibero5_odbc" connectionString="DRIVER={Tibero 5 ODBC
Driver};SERVER=127.0.0.1;PORT=8629;DB=tibero;UID=tibero;PWD=tmax"
providerName="System.Data.Odbc" />
<add name="tibero5_oledb" connectionString="Provider=tbprov.Tbprov.1;Data
Source=tibero;User ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool
Size=2;Connection Lifetime=0"
providerName="System.Data.OleDb" />
<add name="tibero5_oledblocation"
connectionString="Provider=tbprov.Tbprov.1;Location=127.0.0.1,8629;User
ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool Size=2;Connection
Lifetime=0"
providerName="System.Data.OleDb" />
</connectionStrings>
</configuration>
[Program.cs]
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.Data;
using System.Data;
using System.Data.Common;
// For Oracle
36
Development and Operation
Better Technology, Better Tomorrow
using System.Data.OracleClient;
// Exception
//using Microsoft.Practices.EnterpriseLibrary.ExceptionHandling;
//using Microsoft.Practices.EnterpriseLibrary.Logging;
namespace EntLibTest
{
class Program
{
static void Main(string[] args)
{
/* Get Connection */
Database db = conn("oracle_con");
//Database db = conn("tibero5_oledb");
//Database db = conn("tibero5_odbc");
try
{
//func1(db); // Tibero OLEDB OK, Tibero ODBC X
//func2(db, 7934); // Tibero OLEDB X, Tibero ODBC X
//func3(db, 7934); // Tibero OLEDB OK, Tibero ODBC X
//func4_ora(db, 10); // Oracle
func4_tbr(db, 10); // Tibero OLEDB OK, Tibero ODBC X
}
catch (Exception ex)
{
/* Display general errors */
Console.WriteLine("############# Exception !! #############");
Console.WriteLine("Message : " + ex.Message);
Console.WriteLine(ex.StackTrace);
/* Common error processing – Records event logs */
/*
bool
rethrow
=
ExceptionPolicy.HandleException(ex,
Policy");
if (rethrow)
throw;
*/
}
} // main end
static Database conn(String dbname)
{
//Database db = DatabaseFactory.CreateDatabase();
Database db = DatabaseFactory.CreateDatabase(dbname);
Console.WriteLine("Connection : " + db.ConnectionString);
return db;
} // end conn
/**
* ( When inquiring the use of DBDataReader) ExecuteReader
*/
static void func1(Database db)
37
"Data
Access
Development and Operation
Better Technology, Better Tomorrow
{
string sqlCommand = "select * from emp";
DbCommand dbCommand = db.GetSqlStringCommand(sqlCommand);
//StringBuilder readerData = new StringBuilder();
Console.WriteLine("#######OUTPUT(func1)######");
using (IDataReader dataReader = db.ExecuteReader(dbCommand))
{
while (dataReader.Read())
{
//Console.Write("{0:G},
{1:S},
{2:S}
\n",
dataReader["empno"],
dataReader["ename"], dataReader["job"]);
Console.Write("{0},
{1},
{2}
\n",
dataReader["empno"],
dataReader["ename"], dataReader["job"]);
}
}
} // end func1
/**
* Function, return value
*
CREATE OR REPLACE FUNCTION get_ename
(
emp_no number
)
return varchar2
IS
v_ename varchar2(20);
BEGIN
SELECT ename INTO v_ename
FROM emp
WHERE empno = emp_no;
return v_ename;
EXCEPTION
WHEN NO_DATA_FOUND THEN -- ORA-01403( SQL CODE : 100 )
v_ename := 'NO_DATA_FOUND';
return v_ename;
WHEN OTHERS THEN
v_ename := 'OTHERS';
return v_ename;
END;
/
*
*/
static void func2(Database db, int empno)
{
string sqlCommand = "get_ename";
DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
db.AddInParameter(dbCommand, "emp_no", DbType.VarNumeric, empno);
//db.AddInParameter(dbCommand, "emp_no", DbType.Int32, empno);
db.AddParameter(dbCommand, "ename", DbType.String, 20,
ParameterDirection.ReturnValue,
false, 0, 0, null, DataRowVersion.Default, null);
db.ExecuteNonQuery(dbCommand);
Console.WriteLine("#######OUTPUT(func2)######");
38
Development and Operation
Better Technology, Better Tomorrow
Console.WriteLine("Ename : " + dbCommand.Parameters[1].Value);
} // end func2
/**
* Procedure, out parameter
*
CREATE OR REPLACE procedure get_ename2
(
emp_no number
,ename OUT varchar2
,job OUT varchar2
)
IS
v_ename varchar2(20);
v_job varchar2(20);
BEGIN
SELECT ename, job INTO v_ename, v_job
FROM emp
WHERE empno = emp_no;
ename := v_ename;
job := v_job;
EXCEPTION
WHEN NO_DATA_FOUND THEN
v_ename := 'NO_DATA_FOUND';
ename := v_ename;
job := v_ename;
WHEN OTHERS THEN
v_ename := 'OTHERS';
ename := v_ename;
job := v_ename;
END;
/
*
*
*/
static void func3(Database db, int empno)
{
string sqlCommand = "get_ename2";
DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
db.AddInParameter(dbCommand, "emp_no", DbType.VarNumeric, empno);
//db.AddInParameter(dbCommand, "emp_no", DbType.Int32, empno);
db.AddOutParameter(dbCommand, "ename", DbType.String, 20);
db.AddOutParameter(dbCommand, "job", DbType.String, 20);
db.ExecuteNonQuery(dbCommand);
Console.WriteLine("#######OUTPUT(func3)######");
Console.WriteLine("Ename : " + db.GetParameterValue(dbCommand, "ename"));
Console.WriteLine("job : " + db.GetParameterValue(dbCommand, "job"));
} // end func3
/*
* Uses SYS_REFCURSOR (for Oracle)
*
CRETE OR REPLACE PROCEDURE emp_list
39
Development and Operation
Better Technology, Better Tomorrow
(
oCursor
OUT SYS_REFCURSOR
, emp_no number
)
IS
BEGIN
OPEN oCursor FOR
SELECT *
FROM emp
WHERE empno >= emp_no
;
END;
/
*
*/
static void func4_ora(Database db, int empno)
{
string sqlCommand = "EMP_LIST";
DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
db.AddInParameter(dbCommand, "emp_no", DbType.VarNumeric, empno);
dbCommand.Parameters.Add(new OracleParameter("oCursor", OracleType.Cursor,
0, ParameterDirection.Output, true, 0, 0, String.Empty, DataRowVersion.Default,
Convert.DBNull) );
Console.WriteLine("#######OUTPUT(func4_ora)######");
using (IDataReader dataReader = db.ExecuteReader(dbCommand))
{
while (dataReader.Read())
{
Console.Write("{0},
{1},
{2}
\n",
dataReader["empno"],
dataReader["ename"], dataReader["job"]);
}
}
} // end func4_ora
static void func4_tbr(Database db, int empno)
{
string sqlCommand = "EMP_LIST";
DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand);
db.AddInParameter(dbCommand, "emp_no", DbType.VarNumeric, empno);
//db.AddInParameter(dbCommand, "emp_no", DbType.Int32, empno);
//dbCommand.Parameters.Add(new
OleDbParameterTbr("oCursor",
OleDbTypeTbr.Cursor,
0,
ParameterDirection.Output,
true,
0,
0,
String.Empty,
DataRowVersion.Default, Convert.DBNull));
Console.WriteLine("#######OUTPUT(func4_tbr)######");
using (IDataReader dataReader = db.ExecuteReader(dbCommand))
{
while (dataReader.Read())
{
Console.Write("{0},
{1},
{2}
\n",
dataReader["empno"],
dataReader["ename"], dataReader["job"]);
}
}
} // end func4_tbr
}
}
40
Development and Operation
Better Technology, Better Tomorrow
9.8. C# Named Parameter Sample
using
using
using
using
using
using
System;
System.Data;
System.Data.Common;
System.Data.OleDb;
System.Data.SqlClient;
Tibero.DbAccess;
class Test
{
static void Main(string[] args)
{
string connstr = "Provider=tbprov.Tbprov; Data Source=tibero; User ID=tibero;
Password=tmax; Updatable Cursor=True;";
try
{
OleDbConnectionTbr conn = new OleDbConnectionTbr(connstr);
OleDbDataAdapterTbr oda = new OleDbDataAdapterTbr();
conn.Open();
OleDbCommandTbr selectCmd = new OleDbCommandTbr();
selectCmd.Connection = conn;
string query = "SELECT GOODSCODE,
SUM(GOODSCNT) GOODSCNT
FROM TBL_CART WHERE MEMBERID=:MEMBERID "
+ " AND GOODSCODE IN "
+ " (SELECT GOODSCODE FROM "
+
"
(SELECT
GOODSCODE,
COUNT(GOODSCODE)
FROM
CARTSEQ=:CARTSEQ GROUP BY GOODSCODE HAVING COUNT(GOODSCODE)>1)) "
+ " GROUP BY GOODSCODE";
TBL_CART
WHERE
selectCmd.CommandText = query;
selectCmd.Parameters.Add("CARTSEQ", 3);
selectCmd.Parameters.Add("MEMBERID", "JCHEON");
DataSet SelectData = new DataSet();
oda.SelectCommand = selectCmd;
oda.Fill(SelectData, "TBL_CART");
Console.WriteLine("=======Result[TBL_CART]=========");
Console.WriteLine(SelectData.Tables["TBL_CART"].Rows[0]["GOODSCODE"].ToString());
Console.WriteLine(SelectData.Tables["TBL_CART"].Rows[0]["GOODSCNT"].ToString());
Console.WriteLine("====== end =====\n");
conn.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
}
41
Development and Operation
Better Technology, Better Tomorrow
9.9. Decompiling C# (ildasm)
If ildsam is entered in [Start] > [All Programs] > [Visual Studio 2010] > [Visual Studio Tools] > [Visual Studio
Command Prompt], a GUI tool appears.
When the dll file (e.g., Tibero.DbAccess.dll) is selected from the file menu, the following screen appears. The
method and type definition can be checked.
9.10. C# (Procedure returns cursor-SYS_REFCURSOR)
CREATE OR REPLACE PACKAGE pkg003
IS
PROCEDURE get_forms(curs out SYS_REFCURSOR);
END;
CREATE OR REPLACE PACKAGE BODY pkg003
IS
-- procedure implementation
PROCEDURE get_forms(curs out SYS_REFCURSOR) IS
BEGIN
open curs FOR select sysdate FROM dual;
END;
END;
string
connectionString
=
System.Configuration.ConfigurationManager.ConnectionStrings["tibero5_oledb"].Connecti
onString;
OleDbConnectionTbr myConnection = new OleDbConnectionTbr(connectionString);
DataTable dt = new DataTable();
System.Data.OleDb.OleDbDataReader reader = null;
try{
myConnection.Open();
OleDbCommandTbr cmd = new OleDbCommandTbr();
42
Development and Operation
Better Technology, Better Tomorrow
cmd.Connection = myConnection;
cmd.CommandText = "pkg003.get_forms";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("curs",
OleDbTypeTbr.Cursor).Direction
ParameterDirection.Output;
reader = cmd.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{ }
finally
{
reader.Close();
myConnection.Close();
}
9.11. C# (Procedure returns cursor - REF CURSOR)
CREATE OR REPLACE PACKAGE pkg003
IS
TYPE cur004 IS REF CURSOR;
PROCEDURE get_forms(curs out cur004);
END;
create or replace package body pkg003
is
procedure get_forms(curs out cur004) is
begin
open curs for select sysdate from dual;
end;
end;
create or replace procedure get_forms
(
curs in out pkg003.cur004
) is
begin
pkg003.get_forms(curs);
end;
using
using
using
using
using
using
using
using
using
using
using
using
using
using
System;
System.Collections;
System.ComponentModel;
System.Data;
System.Drawing;
System.Web;
System.Web.SessionState;
System.Web.UI;
System.Web.UI.WebControls;
System.Web.UI.HtmlControls;
System.Data.SqlClient;
System.Data.OleDb;
System.Data.Common;
Tibero.DbAccess;
namespace Tutorial
43
=
Development and Operation
Better Technology, Better Tomorrow
{
/// <summary>
/// Summary description for WebForm1.
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid myDataGrid;
private void callNormalOleDbCall()
{
string
connectionString
=
System.Configuration.ConfigurationManager.ConnectionStrings["tibero5_oledb"].Connecti
onString;
string
providername
=
System.Configuration.ConfigurationManager.ConnectionStrings["tibero5_oledb"].Provider
Name;
Response.Write(connectionString + "<br />"); // Display
/*
* Currently recommended method to retrieve connection string information.
* web.config
<connectionStrings>
<add name="oracle_con" connectionString="Data Source=CENT64_JP2;Persist
Security Info=True;User ID=scott;Password=tiger"
providerName="System.Data.OracleClient" />
<add name="tibero5_odbc" connectionString="DRIVER={Tibero 5 ODBC
Driver};SERVER=127.0.0.1;PORT=8629;DB=tibero;UID=tibero;PWD=tmax"
providerName="System.Data.Odbc" />
<add
name="tibero5_oledb"
connectionString="Provider=tbprov.Tbprov.1;Data
Source=tibero;User
ID=tibero;Password=tmax;Pooling=True;Max Pool Size=50;Min Pool Size=2;Connection
Lifetime=0"
providerName="System.Data.OleDb" />
</connectionStrings>
*/
if (String.Compare(providername, "System.Data.OleDb", true) == 0)
{
OleDbConnectionTbr
OleDbConnectionTbr(connectionString);
myConnection
DataTable dt = new DataTable();
System.Data.OleDb.OleDbDataReader reader = null;
try{
myConnection.Open();
OleDbCommandTbr cmd = new OleDbCommandTbr();
cmd.Connection = myConnection;
/*
* CREATE OR REPLACE PACKAGE pkg003
IS
TYPE cur004 IS REF CURSOR;
PROCEDURE get_forms(curs out cur004);
END;
create or replace package body pkg003
is
procedure get_forms(curs out cur004) is
44
=
new
Development and Operation
Better Technology, Better Tomorrow
begin
open curs for select sysdate from dual;
end;
end;
*
* create or replace procedure get_forms
(
curs in out pkg003.cur004
) is
begin
pkg003.get_forms(curs);
end;
* */
cmd.CommandText = "get_forms";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("curs",
OleDbTypeTbr.Cursor).Direction
ParameterDirection.Output;
reader = cmd.ExecuteReader();
Response.Write("CURSOR TEST<br />"); // Display
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
else if (String.Compare(providername, "System.Data.Odbc", true) == 0)
{
//System.Data.Odbc
System.Data.Odbc.OdbcConnection myConnection =
new System.Data.Odbc.OdbcConnection(connectionString);
System.Data.Odbc.OdbcDataReader reader = null;
//Method to call a procedure
System.Data.Odbc.OdbcCommand myCommand =
new
System.Data.Odbc.OdbcCommand("select
*
from
myConnection);
myCommand.CommandType = System.Data.CommandType.Text;
try
{
myConnection.Open();
reader = myCommand.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
else
45
=
all_tables",
Development and Operation
Better Technology, Better Tomorrow
{
System.Data.SqlClient.SqlConnection myConnection =
new System.Data.SqlClient.SqlConnection(connectionString);
System.Data.SqlClient.SqlDataReader reader = null;
// Method to call a procedure
System.Data.SqlClient.SqlCommand myCommand =
new System.Data.SqlClient.SqlCommand("GetData", myConnection);
myCommand.CommandType = System.Data.CommandType.StoredProcedure;
try
{
myConnection.Open();
reader = myCommand.ExecuteReader();
myDataGrid.DataSource = reader;
myDataGrid.DataBind();
}
catch (Exception)
{
// Catches and logs the exception
}
finally
{
reader.Close();
myConnection.Close();
}
}
}
private void Page_Load(object sender, System.EventArgs e)
{
if(!Page.IsPostBack)
{
callNormalOleDbCall();
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
9.12. ASP (BLOB Insert Sample)
[Table]
CREATE TABLE SPACEMAN.NOTICE3 (
SEQ NUMBER,
CONTENTS BLOB
46
Development and Operation
Better Technology, Better Tomorrow
);
[ASP Source]
<%
Function ReadByteArray(strFileName)
Const adTypeBinary = 1
Dim bin
Set bin = CreateObject("ADODB.Stream")
bin.Type = adTypeBinary
bin.Open
bin.LoadFromFile strFileName
ReadByteArray = bin.Read
End Function
Set objConn = server.CreateObject("ADODB.Connection")
Set cm = Server.Createobject("ADODB.Command")
objConn.Open
"Provider=tbprov.Tbprov;Data
ID=tibero;Password=tmax;"
Source=tibero;User
strQry = "INSERT INTO NOTICE3 (SEQ, CONTENTS) VALUES (?, ?)"
response.Write("strQry : " & strQry & "<br>")
Dim seq
'The seq file value to be entered into the ‘notice 3’ table.
seq=44
cm.ActiveConnection = objConn
cm.CommandText = strQry
cm.Parameters.Append cm.CreateParameter("@SEQ", 3, 1, Len(seq), seq)
Dim fileURI
fileURI = "D:\tibero\binary\tibero5-bin-5.0-windows64-69860-opt-tested.tar.gz"
'ReadByteArray(Absolute path to the file)
cm.Parameters.Append
cm.CreateParameter("@CONTENTS",
1,LenB(ReadByteArray(fileURI)) ,ReadByteArray(fileURI))
'cm.CommandType = 1 <<= Cannot use
cm.Execute
Set cmd = Nothing
objConn2.Close
Set objConn2 = Nothing
%>
47
205,
Development and Operation
Better Technology, Better Tomorrow
Copyright © 2014 TmaxData Co., Ltd. All Rights Reserved.
Russia
Tmax Russia L.L.C.
Grand Setun Plaza, No A204 Gorbunova st.2,
Moscow, 121596
Tel: +7(495)970-01-35
Email: info.rus@tmaxsoft.com
Web (Russian): http://ru.tmaxsoft.com
Trademarks
Tibero RDBMS® is a registered trademark of TmaxData Co., Ltd.
Other products, titles or services may be registered trademarks
of their respective companies.
Contact Information
TmaxData can be contacted at the following addresses to
arrange for a consulting team to visit your company and discuss
your options.
Singapore
Tmax Singapore Pte. Ltd.
430 Lorong 6, Toa Payoh #10-02, OrangeTee Building.
Singapore 319402
Tel: +65-6259-7223
Email: info.sg@tmaxsoft.com
Korea
TmaxData Co., Ltd
5, Hwangsaeul-ro 329beon-gil, Bundang-gu,
Seongnam-si, Gyeonggi-do. South Korea
Tel: +82-31-779-7113
Fax: +82-31-779-7119
Email: info@tmax.co.kr
Web (Korean): http://www.tmaxdata.com
Technical Support: http://technet.tmaxsoft.com
United Kingdom
TmaxSoft UK Ltd.
Surrey House, Suite 221, 34 Eden Street, Kingston-UponThames, KT1 1ER United Kingdom
Tel: + 44-(0)20-8481-3776
Email: info.uk@tmaxsoft.com
Web (English): http:/www.tmaxsoft.com
USA
TmaxSoft, Inc.
560 Sylvan Avenue
Englewood Cliffs, NJ 07632. U.S.A
Tel: +1-201-567-8266
Fax: +1-201-567-7339
Email: info@tmaxsoft.com
Web (English): http://www.tmaxsoft.com
Japan
TmaxSoft Japan Co., Ltd.
5F Sanko Bldg, 3-12-16 Mita, Minato-Ku, Tokyo, 1080073
Japan
Tel: +81-3-5765-2550
Fax: +81-3-5765-2567
Email: info.jp@tmaxsoft.com
Web (Japanese): http://www.tmaxsoft.co.jp
China
TmaxSoft China Co., Ltd.
Beijing Silver Tower, RM 1508, 2 North Rd Dong San
Huan, Chaoyang District, Beijing, China, 100027. China
Tel: +86-10-6410-6145~8
Fax: +86-10-6410-6144
Email: info.cn@tmaxsoft.com
Web (Chinese): http://www.tmaxsoft.com.cn
Brazil
TmaxSoft Brazil
Avenida Copacabana, 177 - 3 andar 18 do Forte
Empresarial, Alphaville - Barueri, Sao Paulo, SP-Brasil CEP
06472-001
Email: contato.brasil@tmaxsoft.com
TD-TR3P-D0516101
48

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