[Please copy the mailing list on replies so others can contribute to and learn from the discussion.] On Thu, Feb 14, 2008 at 09:56:36AM +0100, Hermann Muster wrote: > The statement I'm using is the following: > SELECT > "FIRMEN"."Firma","FIRMEN"."Firma2","FIRMEN"."Firma3","FIRMEN"."Such","FIRMEN"."Land","FIRMEN"."PLZZ","FIRMEN"."Ort","FIRMEN"."Strasse","FIRMEN"."PLZP","FIRMEN"."Postfach","FIRMEN"."Telefon","FIRMEN"."Telefax","FIRMEN"."eMail","FIRMEN"."Internet","FIRMEN"."KundenNr","FIRMEN"."UST_ID","FIRMEN"."ABC","FIRMEN"."Zusatz1","FIRMEN"."Zusatz2","FIRMEN"."Zusatz3","FIRMEN"."Zusatz4","FIRMEN"."Zusatz5","FIRMEN"."BLZ","FIRMEN"."KtoNr","FIRMEN"."Bank","FIRMEN"."IBAN","FIRMEN"."Kreditkart","FIRMEN"."KreditkNr","FIRMEN"."AdressTyp","FIRMEN"."VKGebiet","FIRMEN"."Zahlungart","FIRMEN"."UmsatzSoll","FIRMEN"."BonAnfrDat","FIRMEN"."BonInfoDat","FIRMEN"."BonIndex","FIRMEN"."BonLimit","FIRMEN"."BonOK","FIRMEN"."BonInfo","FIRMEN"."BonKapital","FIRMEN"."BonUmsJahr","FIRMEN"."BonMAZahl","FIRMEN"."BonZahlung","FIRMEN"."Betreuer","FIRMEN"."Com_Wahl","FIRMEN"."Symbol","FIRMEN"."ErfDat","FIRMEN"."ErfUser","FIRMEN"."L_Dat","FIRMEN"."L_User","FIRMEN"."RecordID","FIRMEN"."Z_Import_PK","FIRMEN"."Z_Import_FK","FIRMEN"."KreditkInh","FIRMEN"."Br > anchenTyp1","FIRMEN"."BranchenTyp2","FIRMEN"."KK_Exp_J","FIRMEN"."KK_Exp_M","FIRMEN"."Kategorie" > FROM "FIRMEN" > WHERE "FIRMEN"."RecordID" IN (SELECT DISTINCT "X"."RecordID" FROM "FIRMEN" > "X" INNER JOIN "FIRMEN" "Y" ON > COALESCE(UPPER(SUBSTR("X"."Firma",1,7)) = I haven't examined the entire query but the above line appears to be the problem. Did you mean to write the following? COALESCE(UPPER(SUBSTR("X"."Firma",1,7)),'') = > COALESCE(UPPER(SUBSTR("Y"."Firma",1,7)),'') AND > COALESCE(UPPER("X"."PLZZ"),'') = COALESCE(UPPER("Y"."PLZZ"),'') AND > COALESCE(UPPER("X"."PLZP"),'') = COALESCE(UPPER("Y"."PLZP"),'') AND > "X"."RecordID" <> "Y"."RecordID") -- Michael Fuhr ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend