批量添加:
insert into A(a,b,c) select t.a,t.b,t.c from B t
批量修改:
update T1 set T1.A列=
(select T2.A列 from T2 where T2.B列=T1.A列 and rounum<=1)
where exists(select 1 from T2 where T2.B列=T1.A列 ) --加上这句,避免勿更新一些资料!
批量添加、修改 (未完待续)
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转载自guifan.iteye.com/blog/1394952
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