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Using a Recordset Object

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Alternatively, you can use Recordset.Open to implicitly establish a connection and issue a command over that connection in a single operation. For example, in Visual Basic:

Dim oRs As ADODB.Recordset  
Dim sConn As String  
Dim sSQL as String  
  
sConn = "Provider='SQLOLEDB';Data Source='MySqlServer';" & _             "Initial Catalog='Northwind';Integrated Security='SSPI';"  
  
sSQL = "SELECT ProductID, ProductName, CategoryID, UnitPrice " & _  
             "FROM Products"  
  
' Create and Open the Recordset object.  
Set oRs = New ADODB.Recordset  
oRs.CursorLocation = adUseClient  
oRs.Open sSQL, sConn, adOpenStatic, _  
               adLockBatchOptimistic, adCmdText  
  
MsgBox oRs.RecordCount  
  
oRs.MarshalOptions = adMarshalModifiedOnly  
' Disconnect the Recordset.  
Set oRs.ActiveConnection = Nothing  
oRs.Close          
Set oRs = Nothing

Notice that oRs.Open takes a connection string (sConn), in place of a Connection object (oConn), as the value of its ActiveConnection parameter. Also the client-side cursor type is enforced by setting the CursorLocation property on the Recordset object. Again, contrast this with the HelloData example.