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How To Create a Database using SQL Scripts for a Portfolio Reporting VBA App
How To Use SQL Scripts for VBA Apps
In this document we show the scripts required to set up a database, continuing with the example of a Portfolio Reporting VBA tool consisting of a
SQL/Access database linked with Excel. The Portfolio Reporting VBA tool was first outlined in a document on writing use cases.
The key advantage of using scripts is that they are re-useable, and provide a powerful means of backing up the database architecture.
The following SQL scripts will set up the database in a SQL server environment. For Access, we will need to make changes to the code, as shown below.
CREATE TABLE IF NOT EXISTS Risk_Return (
Date_ DATE NOT NULL,
Daily_Return FLOAT NULL,
PRIMARY KEY (Date_)
)
CREATE TABLE IF NOT EXISTS Portfolio_Return (
Date_ DATE NOT NULL,
PortfolioValue FLOAT NULL,
PRIMARY KEY (Date_),
INDEX FK_Portfolio_Return_DATE
CONSTRAINT FK_Portfolio_Return_DATE
FOREIGN KEY (Date_)
REFERENCES Risk_Return (Date_)
1
Nyasha Madavo, VBA Developer.net
Portfolio Reporting VBA App: Creating a Database using SQL Scripts
How To Create a Database using SQL Scripts for a Portfolio Reporting VBA App
ON DELETE NO ACTION,
)
CREATE TABLE IF NOT EXISTS Asset_Return (
Date_ DATE NOT NULL,
AssetID VARCHAR (30) NOT NULL,
AssetHoldings FLOAT NULL,
PRIMARY KEY (Date_, AssetID)
CONSTRAINT FK_Asset_Return_DATE
FOREIGN KEY (Date_)
REFERENCES Risk_Return (Date_)
ON DELETE NO ACTION,
)
SQL Scripts for Access Database
CREATE TABLE Risk_Return (
Date_ DATE
NOT NULL CONSTRAINT PK_DateID PRIMARY KEY,
Daily_Return FLOAT NULL)
CREATE TABLE Portfolio_Return (
2
Nyasha Madavo, VBA Developer.net
Portfolio Reporting VBA App: Creating a Database using SQL Scripts
How To Create a Database using SQL Scripts for a Portfolio Reporting VBA App
Date_
DATE
NOT NULL CONSTRAINT PK_DateID PRIMARY KEY
REFERENCES Risk_Return (Date_),
PortfolioValue FLOAT)
CREATE TABLE Asset_Return (
Date_
DATE NOT NULL CONSTRAINT PK_DateIDAssetID
REFERENCES Risk_Return (Date_),
AssetID VARCHAR (30) NOT NULL ,
AssetHoldings FLOAT NULL,
PRIMARY KEY (Date_, AssetID)
)
Next Steps
Having created the tables, we then set up stored procedures for calculating the risk-return measures of the Portfolio.
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