minus 与 order
使用minus时不能用order by 排序?
select c1 from t1 where rownum<10 order by c1
minus
select c1 from t1 where rownum<5 order by c1
出错。
select c1 from t1 where rownum<10 order by c1
minus
select c1 from t1 where rownum<5 order by c1
出错。
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基础和管理
