Oracle快速復制表

清空表 

oracle --truncate

truncate table gh_qytc_ls;


//從一個表插入到另外一個表
insert into gh_qytc_ls SELECT * FROM gh_qytc tc;



快速copy一張表數據到另外一張表

1、創建一個臨時表，字段和要用的表相同
create table gh_qyghgx_temp as   select * from gh_qyghgx  where qybm='F227';
2、查詢臨時表是否創建成功
select * from gh_qyghgx_temp;
3、刪除臨時表的那條記錄
truncate table gh_qyghgx_temp;
4、把要備份的表的數據放入臨時表
insert into gh_qyghgx_temp select * from gh_qyghgx 
5、查詢是否插入成功
select count(*) from gh_qyghgx_temp;