原文:insert into select 和select into from 备份表

一 insert into select要求表必须存在 INSERTINTO order record SELECT FROM order today FORCEINDEX idx pay suc time WHERE pay success time lt : : FORCEINDEX idx pay suc time 指定使用索引,避免使用了低效的索引。 使用 insert into tabl ...

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select into frominsert into select

select into frominsert into select都是用来复制表, 两者的主要区别为:   select into from 要求目标不存在,因为在插入时会自动创建。   insert into select from 要求目标存在 备份数据 ...

Wed Mar 28 22:27:00 CST 2018 0 10448
SELECT INTO FROMinsert into from

1.SELECT INTO FROM语句 语句形式为:SELECT vale1, value2 into Table2 from Table1 要求目标Table2不存在,因为在插入时会自动创建Table2,并将Table1中指定字段数据复制到Table2中,请注意 ...

Wed Jan 18 03:45:00 CST 2012 0 5086
insert into select(insert select)和select into from语句

1、insert into select(insert select)语句 要求目标Table2必须存在,由于目标Table2已经存在,所以我们除了插入源Table1的字段外,还可以插入常量 语句形式为: 上面的语句比较适合两个的数据互插 ...

Thu Oct 24 18:21:00 CST 2019 0 3728
select into frominsert into select 的用法

SELECT INTO 和 INSERT INTO SELECT 两种复制语句 Insert是T-sql中常用语句,Insert INTO table(field1,field2,...) values(value1,value2,...)这种形式的在应用程序开发 ...

Wed Sep 23 18:26:00 CST 2015 0 7241
INSERT INTO SELECTSELECT INTO FROM的用法

复制旧表数据至新 1、INSERT INTO SELECT语句   语句形式为:Insert into Table2(field1,field2,...) select value1,value2,... from Table1   注意:(1)要求目标Table2必须存在,并且字段 ...

Wed May 19 19:45:00 CST 2021 0 4522
insert into select 多个

INSERT INTO user_auth(userid, auth_plane_id) select user.user_id AS userid, plane.id AS auth_plane_id FROM user, plane WHERE user.name = '陈 ...

Sun Jan 27 19:12:00 CST 2019 0 1364
 
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