Use the column name with table name separated by dot (.). For eg: SELECT * FROM users, sessions WHERE users.user_id = sessions.user_id Thanks & Regards Udayakumar Sarangapani Team Lead - PHP CompIndia Infotech Pvt. Ltd. Chennai. "Science is nothing but logic..." ________________________________ From: rahul dongre <mady_dongre@xxxxxxxxxxx> To: php-objects@xxxxxxxxxxxxxxx Sent: Mon, 23 November, 2009 11:51:56 PM Subject: problem in mysql hello all i have a problem in mysql . i have three table like audio video and download, all tables have a coloumn name user id.i want to fetch a user whose id is equal to session(user id) from all three tables. how i can do this. i also tried join but not getting aspected result please help me. Rahul Dongre The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo. com/ [Non-text portions of this message have been removed] The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/ [Non-text portions of this message have been removed]