Alain Roger wrote:
hi, i would like to know how can i control the returned value from a SQL statement ?
You've left out some pretty significant information, like what method you're using to access PostgreSQL.
ODBC from C/C++/whatever? PHP? Perl DBD? Python DBI? The .net interfaces? Java / JDBC ? Java with an ORM layer ? PL/PgSQL stored proceures executed by `psql' ? ... -- Craig Ringer