Crash when calling SQLSetDescField

Hi,

    Following steps lead to crash!
    1. call SQLAllocHandle to allocate a statement handle
    2. call SQLGetStmtAttr(...,SQL_ATTR_IMP_PARAM_DESC,...) to get the IPD of the stmt handle
    3. call SQLSetDescField(...,1,SQL_DESC_PARAMETER_TYPE,...)
    The 3rd step leads to crash.
    But SQLSetDescField(...,1,SQL_DESC_CONCISE_TYPE,...) will not crash, and following call to set
SQL_DESC_PARAMETER_TYPEwill not crash either. 


　　Regards,　　　　　


　　　　　　　　Han
　　　　　　　　zhouhanok@vip.sina.com
　　　　　　　　　　2002-12-25