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Visual Basic (Microsoft) Versions 5/6 FAQ

Database

Connecting to SQL Server Programmatically by BrianLW
Posted: 12 Feb 04 (Edited 17 Feb 04)

This is a very basic example of how to connect to a SQL Server. The Recordset object and Connection object have many more properties than these.

For more information about the other properties, please go to:
 http://msdn.microsoft.com/library/default.asp?url=/libr...

Begin with making sure your Project has a reference to 'Microsoft ActiveX Data Objects 2.x Library' where x is (preferably) the highest number.


' **** Create Connection and Recordset Objects ****
Dim cnConn As ADODB.Connection
Dim rs As ADODB.Recordset

' **** Instantiate the new objects ****
Set cnConn = New ADODB.Connection
Set rs = New ADODB.Recordset

' **** Set up connection String    ****
With cnConn
    .Provider = "SQLOLEDB.1"
    .Properties("Data Source").Value = "SQLServerName"
    .Properties("User ID").Value = "UserName"
    .Properties("Password").Value = "Password"
    .Properties("Initial Catalog").Value = "DatabaseName"
    .CursorLocation = adUseClient
    .ConnectionTimeout = 0
        
    .Open
        
End With

' **** String to pass to the connection to get records back ****
strSQL = "SELECT * FROM TableName"

' **** Open Records for readonly ****
rs.Open strSQL, cnConn, adOpenStatic, adLockReadOnly



Do what you need to with the recordset.

When you are finished with it:


' **** Close Objects ****
rs.Close
cnConn.Close



If you are completely finished with them:


' **** Destroy objects ****
Set rs = Nothing
Set cnConn = Nothing


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