PRB: SQL Server Driver GP-Faults with More Than 50 Datatypes

SUMMARY

An ODBC application using a SQL Server driver earlier than version 1.01.2920 causes a general protection fault (GP-fault) when you attempt to connect to a SQL Server database with more than 50 user-defined data types.

SYMPTOMS

When an ODBC application tries to connect to a SQL Server data source that has more than 50 user-defined data types, it causes a general protection fault in the module SQLSRVR.DLL. SQL Server has two different kinds of data types: system defined and user-defined. System-defined data types are those that are defined by SQL Server, such as CHAR, INT, DATETIME, and so on. User-defined datatypes allow the user to define their own data types in terms of the system data types. For example, you can have a data type called EMPID which maps to CHAR(5).

User-defined data types are specific to a database and are not server wide. Thus, the ODBC application may be able to connect to a different database on the same SQL Server, if that database has less than 50 user-defined data types. Visual Basic users can encounter this problem when the Visual Basic application calls the OpenDataBase function. Microsoft Access 1.0 users can encounter this problem when they try to attach to a table.

RESOLUTION

This problem has been corrected in SQL Server driver version 1.01.2920, and is available from your primary support provider. To install the new driver, run the setup program from the update disk and reinstall the SQL Server driver. After installing the driver, make sure you run the INSTCAT.SQL script that is contained in the update disk.