游标的使用
摘要:SQL code 如何批量修改一列的值?把另一张表的某个字段对应的赋到这张表的某一字段中 update table1 set c1=(select c2 from table2 where c1.main=c2.main); update table1 set c1=(select c2 from
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posted @ 2019-05-18 10:32
posted @ 2019-05-18 10:32
posted @ 2019-05-18 10:30
posted @ 2019-05-18 10:27
posted @ 2019-05-18 10:20