select into from与insert into select区别
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select into from与insert into select区别
两者都是复制表的语句，但还是有一定的区别的。。
1. select * into table2 from table1;
2. insert into table2 select * from table1;
语句1中的table2是不能已经建立的，语句执行的时候会自动建立表table2，如果已经存在表table2，系统会提示表已存在 。
而语句2中的table2则必须已经存在，否则会提示表不存在~
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