DOCUMENT:Q159470 25-MAR-2000 [odbc] TITLE :FIX: SQLDescribeCol & SQLColAttributes Give Wrong Nullability PRODUCT :Open Database Connectivity (ODBC) PROD/VER:WINDOWS:2.65; winnt:6.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SQL Server version 6.5 - Microsoft Open Database Connectivity, version 2.65 ------------------------------------------------------------------------------- BUG #: 15749 (2.65.0201) SYMPTOMS ======== When you add an identity column to an existing table using the ALTER TABLE statement, SQLColAttributes and SQLDescribeCol incorrectly report that the identity column allows NULLs. WORKAROUND ========== To work around this problem, use the Column nullability information derived from SQLColumns. STATUS ====== Microsoft has confirmed this to be a problem in Microsoft SQL Server version 6.5 and the Open Database Connectivity driver version 2.65. This problem has been corrected in U.S. Service Pack 2 for Microsoft SQL Server version 6.5. For more information, contact your primary support provider. MORE INFORMATION ================ SQLColumns, correctly reports that the column does not allow NULLs. NOTE: This problem also occurs with the SQL Server 6.5 Service Pack 1 ODBC driver build 2.65.0212. Additional query words: 2.65 6.50 Nullibility odbc KBCategory: kbinterop kbbug6.50 kbbug2.65 kbfix6.50.sp2 ====================================================================== Keywords : Technology : kbSQLServSearch kbAudDeveloper kbSQLServ650 kbODBCSearch Version : WINDOWS:2.65; winnt:6.5 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.