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| This works: SELECT geodesic_classifieds_userdata.id FROM geodesic_classifieds_userdata LEFT JOIN subscriber ON geodesic_classifieds_userdata.id=subscriber.GeoCla ssID WHERE subscriber.GeoClassID IS NULL; Please check this syntax for a DELETE statement DELETE geodesic_user_data gud, subscriber s FROM gud WHERE gud.id != s.GeoClassID or would this work: DELETE geodesic_user_data gud, subscriber s FROM gud LEFT JOIN subscriber ON geodesic_classifieds_userdata.id=subscriber.GeoCla ssID WHERE subscriber.GeoClassID IS NULL; We're stuck with MySQL 4.0.17 so the subquery approach isn't possible. Regards - Miles -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.412 / Virus Database: 268.18.3/696 - Release Date: 2/21/2007 |