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

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