> From: sangprabv <sangpr...@gmail.com> > Subject: is_string or is_numeric > To: mysql@lists.mysql.com > Date: Thursday, 15 October, 2009, 10:34 AM > Hi, > I found no built in function in mysql to check whether a > record is > numeric or string. Is there any trick to do so? Many > thanks.
You could use some regex to do it... In fact, a google brings up this (http://forums.mysql.com/read.php?60,1907,241284#msg-241284) CREATE FUNCTION ISNUMERIC(myVal VARCHAR(1024)) RETURNS TINYINT(1) DETERMINISTIC RETURN myVal REGEXP '^(-|\\+)?([0-9]+\\.[0-9]*|[0-9]*\\.[0-9]+|[0-9]+)$'; Glyn -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
