subquery-factoring

I'm trying to get the WITH clause to work with merge in Oracle, but for some reason I can't get it working. I'm sure it is something obvious, but I just haven't seen it. -- behold, the wonders of fake data WITH X AS ( SELECT 'moo' AS COW, 'woof' AS CAT, (SELECT MAX( DECIBELS ) FROM ANIMALIA WHERE COW = 'moo' ) AS DECIBELS FROM DUAL ) MERGE INTO ANIMALIA D USING X WHEN MATCHED THEN UPDATE SET D.COW = X.COW; EDIT I actually found out how to manage this (before I submitted the question), but I think that since it took me quite some time to find the answer, hopefully leaving this question up will

Trying to do this (works in SQL Server): WITH X AS (), Y AS (), Z AS () DELETE FROM TBL WHERE TBL.ID IN (SELECT ID FROM Z); This works in Oracle: WITH X AS (), Y AS (), Z AS () SELECT * FROM TBL WHERE TBL.ID IN (SELECT ID FROM Z); But the DELETE does not: ORA-00928: missing SELECT keyword My subqueries are rather large, is there a different syntax to get this to work? You cannot use Subquery Factoring/CTE with anything but the SELECT statement. From the documentation: You can specify this clause in any top-level SELECT statement and in most types of subqueries. You could do this: DELETE FROM