alter table byp3 rename to byp_2
rename byp_2 to byp3
create byp_2 as
select * from byp3
(在这里还可以给加个where限制条件直接取一个表格式或者取一部分数据就行)
drop byp3
上一篇:oracle insert into 和 update
下一篇:oracle的blob类型到sqlserver