QODBC: fix converted string values empty SQLServer 2012

SQL Server 2012 Native Client (version 11.0.2100.60) or later introduced
a change in the behavior of the SQLGetData method when converted string values
are involved. In older version a (sometimes wrong) size was returned. Now always
SQL_NO_TOTAL is returned which signals to read as much data as available.
SQL_NO_TOTAL was handled like SQL_NULL_DATA in the code before which indicates a
NULL value so the returned string was empty.

See link for more info: http://msdn.microsoft.com/en-us/library/jj219209.aspx

Change-Id: Ia0d2296caf593890b301ee1848d1bf3eb8d7b6fe
Reviewed-by: Mark Brand <mabrand@mabrand.nl>

0 files changed, 0 insertions, 0 deletions