제목 그대로 입니다.

DELETE qmerrdata err

WHERE NOT EXISTS (

SELECT mergekey

FROM pqmerrdata

WHERE err.disttable = disttable

AND err.distcolumn = distcolumn

AND err.seq = seq

AND err.errdata = errdata

AND err.credt != credt

AND credt = '20081112110324')

AND credt != '20081112110324'

이런식으로는 사용못하나요?