SQL初心者質問スレ [無断転載禁止]©2ch.net

[0216 NAME IS NULL 2017/01/02(月) 21:45:28.71 ID:???]

>>212
ｍｙｓｑｌ と仮定して
select dtime from t1 where
date(dtime) not in (select date from t2);