灰狼的雕虫小技

灰狼和小红帽的现代版

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如A,B结构相同,且无auto increment column的话,

insert into A select * from B;

有auto-increment column的话,insert into A(c1,c2)select (c11,c12)from B;

如结构不同的话,可以insert into A (a1,a2,a3)select(b1,b2,‘test’)from B;

以上在mysql 5.0 and later 测试通过,注意:没有values

另其他数据库还可以:select * into A from B;的语法也可以。

 

posted on Tuesday, May 08, 2007 11:59 AM #数据库相关操作

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