SQL怎样将一个表的数据,插入到另一个表中

Question

来个语句看看``````

Answer 1

如果是oracle就是insert into table1 select * from table2

Answer 2

用游标实现！
declare cursor_name cursor for select column1，column2，from table1 where 。。。
declare @col1 column1_type
declare @col2 column2_type
open cursor_name
WHILE @@FETCH_STATUS = 0
begin
fetch next from cursor_name into @col1,@col2
insert table2(column_name1,column_name2) values(@col1,@col2)
end

close cursor_name

Answer 3

insert 表a select * from 表b