HOWTO: Change the SQL Password Using RDO

• Microsoft Visual Basic Professional and Enterprise Editions for Windows, versions 5.0, 6.0
• Microsoft Visual Basic Enterprise Edition, 32-bit only, for Windows, version 4.0

SUMMARY

The following is an example of how to change the SQL server password from Visual Basic using RDO and SQL Server's Stored Procedure - sp_Password. The article also gives examples of allowing users to change their passwords and allowing the SQL administrator to change the user's password.

MORE INFORMATION

Step-by-Step Example

1. In a new project add two CommandButton to the form.



2. Copy the code in step 4 into the Form's Declaration section.



3. Change the values for the password/username variables.



4. Change the connection properties to match your connection. Note that this example uses a DSN-less connection:

   
      Private Sub Form_Load()
        Command1.Caption = "User"
        Command2.Caption = "Admin"
      End Sub
   
      Private Sub Command1_Click()
      'This procedure is an example of allowing the users to change
      'their own password.
   
        On Error GoTo ErrorHandler
   
        Dim En As rdoEnvironment
        Dim Cn As rdoConnection
        Dim Ps As rdoPreparedStatement
        Dim strConnect As String
        Dim strSQL As String
        Dim strOldPassword As String
        Dim strNewPassword As String
   
        Command2.Enabled = False
   
        'Change the following to match your values
        strOldPassword = "OldPwd"
        strNewPassword = "NewPwd"
        Set En = rdoEnvironments(0)
        En.CursorDriver = rdUseOdbc
   
        strConnect = "Driver={SQL Server};Server=MyServer;" & _
           "Database=pubs;Uid=UserID;Pwd=" & Trim(strOldPassword)
   
        Set Cn = En.OpenConnection(dsName:="", Prompt:=rdDriverNoPrompt, _
        ReadOnly:=False, Connect:=strConnect)
       'Note that the above is a DSN-less connection
   
       'Note: If you don't specify master, you will get this following error:
       '"An invalid parameter was passed."
   
        strSQL = "{ ? = call master.dbo.sp_password(?,?) }"
        Set Ps = Cn.CreatePreparedStatement("", strSQL)
        Ps.rdoParameters(0).Direction = rdParamReturnValue
        Ps.rdoParameters(1) = strOldPassword
        Ps.rdoParameters(2) = strNewPassword
   
        Ps.Execute
        Debug.Print Ps.rdoParameters(0).Value
        If Ps.rdoParameters(0) <> 0 Then
         MsgBox "Could not change password"
        Else
         MsgBox "Password has been changed"
       End If
       En.Close
       Ps.Close
       Cn.Close
       Unload Me
      Exit Sub
   
      ErrorHandler:
       MsgBox "Error - Password was not changed" & Chr(10) & Chr(13) & Error$
       En.Close
      Unload Me
   
      End Sub
   
      Private Sub Command2_Click()
        'This procedure is an example of the SQL Admin changing
        'a users password.
        On Error GoTo ErrorHandler
   
        Dim En As rdoEnvironment
        Dim Cn As rdoConnection
        Dim Ps As rdoPreparedStatement
        Dim strConnect As String
        Dim strSQL As String
        Dim strOldPassword As String
        Dim strNewPassword As String
        Dim strUserName As String
   
        Command1.Enabled = False
   
      'Change the following to match your values
        strOldPassword = "OldPwd"
        strNewPassword = "NewPwd"
        strUserName = "UserID"
        Set En = rdoEnvironments(0)
        En.CursorDriver = rdUseOdbc
   
        strConnect = "Driver={SQL Server};Server=MyServer;" & _
         "Database=master;Uid=sa;Pwd="
   
        Set Cn = En.OpenConnection(dsName:="", Prompt:=rdDriverNoPrompt, _
           ReadOnly:=False, Connect:=strConnect)
       'Note that the above is a DSN-less connection
   
        strSQL = "{ ? = call sp_password(?,?,?) }"
        Set Ps = Cn.CreatePreparedStatement("", strSQL)
   
        Ps.rdoParameters(0).Direction = rdParamReturnValue
        Ps.rdoParameters(1) = strOldPassword
        Ps.rdoParameters(2) = strNewPassword
        Ps.rdoParameters(3) = strUserName
   
        Ps.Execute
        Debug.Print Ps.rdoParameters(0).Value
        If Ps.rdoParameters(0) <> 0 Then
          MsgBox "Could not change password"
        Else
         MsgBox "Password has been changed"
        End If
        En.Close
        Ps.Close
        Cn.Close
        Unload Me
        Exit Sub
   
      ErrorHandler:
      MsgBox "Error - Password was not changed" & Chr(10) & Chr(13) & Error$
        En.Close
        Cn.Close
        Ps.Close
        Unload Me
   
      End Sub 

Additional query words: rdoquery CreateQuery kbdse kbDSupport kbVBp kbVBp500 kbVBp600 kbVBp400 kbRDO

Keywords : kbGrpVBDB
Version :
Platform : WINDOWS
Issue type : kbhowto