You receive a "22001[Microsoft][ODBC SQL Server Driver]String data, right truncation" error message when you run or debug a SQL Server 2000 stored procedure in Visual C++ 6.0

When you use Visual C++ 6.0 to run or debug a SQL Server 2000 stored procedure with a sql_variant type input parameter, the following error message occurs:

Microsoft SQL Server 2000 introduces a new data type called sql_variant. You can use the sql_variant data type to store values of various SQL Server-supported data types except text, ntext, image, timestamp, and sql_variant. In Visual C++ 6.0, you cannot run or debug a SQL Server 2000 stored procedure with an input parameter of type sql_variant.

Steps to Reproduce Behavior

1. Create a new Database Project in Visual C++ 6.0.
2. Switch to the project's Data View.
3. From the Insert menu, click New Database Item. This opens the Insert Database Item dialog box. Select Stored Procedure from the Database Item list box, and then click OK.
4. In the Edit window, create a stored procedure as follows:

   Create Procedure Test @test sql_variant
   As
   return 5
   					

5. Execute or debug the project.
6. A message box appears with the following error message:
   "22001[Microsoft][ODBC SQL Server Driver]String data, right truncation"

For more information, refer to the Visual Studio 6.0 Service Pack 5 Readme.txt file.