=?iso-8859-1?q?Mart=EDn=20Marqu=E9s?= <[EMAIL PROTECTED]> writes: > Which is the best approach to put in a check constraint > col <> something > col != something > ? There's really no difference ... although <> is the SQL-standard-approved spelling, if that matters to you. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html