DELETE FROM <table> a WHERE a.rowid > (SELECT MIN(b.rowid) FROM table b WHERE b.key_field1 = a.keyfield1 AND b.key_field2 = a.keyfield2 AND b.key_fieldN = a.keyfieldN);
Be certain to include all fields in WHERE clause that make up a unique record. Rick Alexander Ordonez To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> <aordonez@ccs cc: s.sa.cr> Subject: Duplicate rows Sent by: root@fatcity. com 02/06/2002 10:33 AM Please respond to ORACLE-L Hi gurus, I need detect and delete duplicate rows in any table, somebody helpme thanks!!! @lex ------------------------------------------------------------ Lic. Alexander Ordóñez Arroyo Caja Costarricense del Seguro Social Soporte Técnico - División de Informática Telefono: 295-2004, San José, Costa Rica [EMAIL PROTECTED] Icq# 30173325 ------------------------------------------------------------ The true is out there in WWW -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Alexander Ordonez INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).