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SQL Anywhere 10.0.1 » SQL Anywhere Server - Programming » SQL Anywhere OLE DB and ADO APIs » ADO programming with SQL Anywhere

ADO programming with SQL Anywhere Next Page

Connecting to a database with the Connection object

This section describes a simple Visual Basic routine that connects to a database.

Sample code

You can try this routine by placing a command button named Command1 on a form, and pasting the routine into its Click event. Run the program and click the button to connect and then disconnect.

Private Sub cmdTestConnection_Click()
    ' Declare variables
    Dim myConn As New ADODB.Connection
    Dim myCommand As New ADODB.Command
    Dim cAffected As Long

    On Error GoTo HandleError

    ' Establish the connection
    myConn.Provider = "SAOLEDB"
    myConn.ConnectionString = _
      "Data Source=SQL Anywhere 10 Demo"
    MsgBox "Connection succeeded"
    Exit Sub

    MsgBox "Connection failed"
    Exit Sub
End Sub

The sample carries out the following tasks:

When the SAOLEDB provider is installed, it registers itself. This registration process includes making registry entries in the COM section of the registry, so that ADO can locate the DLL when the SAOLEDB provider is called. If you change the location of your DLL, you must reregister it.

To register the OLE DB provider
  1. Open a command prompt.

  2. Change to the directory where the OLE DB provider is installed.

  3. Enter the following command to register the provider:

    regsvr32 dboledb10.dll

For more information about connecting to a database using OLE DB, see Connecting to a database using OLE DB.