PQexecPrepared returns NULL when execute an update statement, but update finish successfully and PQerrorMessage return an empty string. I sow similar problem here: http://archives.postgresql.org/pgsql-interfaces/2004-03/msg00003.php but without solution. What do you think about it? I use static libpq.lib built from 8.1.4 source with nmake. -- С уважением, Golikov mailto:golikov(at)eltrast(dot)ru