目的:复制表1中的数据到表2中
1.表结构一样:
insert into Table1 select * from Table2;
2.表结构不一样:
insert into Table1(Table1.c1,Table1.c2,....) select Table2.c1,Table2.c2,... from Table2.
insert into Table1 select * from Table2;
2.表结构不一样:
insert into Table1(Table1.c1,Table1.c2,....) select Table2.c1,Table2.c2,... from Table2.