Why not change it to something along the lines of: UPDATE QR3PARAMS SET ED = 1 WHERE ED is not 1 AND EXISTS ( SELECT 1 FROM CURRENT_MED WHERE ID = QR3PARAMS.ID AND ( TERM_TEXT GLOB 'Sildenafil*' OR TERM_TEXT GLOB 'Tadalafil*' OR TERM_TEXT GLOB 'Vardenafil*' ) );
which would leave ED alone if it didn't find anything, or the following, which would always set it to true or false UPDATE QR3PARAMS SET ED = EXISTS ( SELECT 1 FROM CURRENT_MED WHERE ID = QR3PARAMS.ID AND ( TERM_TEXT GLOB 'Sildenafil*' OR TERM_TEXT GLOB 'Tadalafil*' OR TERM_TEXT GLOB 'Vardenafil*' ) ) WHERE ED is not 1 ; _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users