原文:【oracle】select into from 和 insert into select 的用法和區別

select into from 和 insert into select都是用來復制表,兩者的主要區別為: select into from 要求目標表不存在,因為在插入時會自動創建。insert into select from 要求目標表存在 一 INSERT INTO SELECT語句語句形式為: Insert into Table field ,field ,... select va ...

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select into frominsert into select用法區別(轉)

轉自:http://www.studyofnet.com/news/182.html select into frominsert into select都是用來復制表,兩者的主要區別為: select into from 要求目標表不存在,因為在插入時會自動創建。insert ...

Thu Nov 12 00:57:00 CST 2015 0 14266
select into frominsert into select用法區別

select into frominsert into select都是用來復制表,兩者的主要區別為: select into from 要求目標表不存在,因為在插入時會自動創建。 insert into select from 要求目標表存在. 備份表數據: create ...

Thu Apr 20 22:50:00 CST 2017 0 1803
select into frominsert into select用法區別

select into 和inserrt into 都能滿足復制表的作用 但是二者又有區別 select into : 語法 :SELECT vale1, value2 into Table2 from Table1 此處 創建目標表table2 並 把table1 中的數據復制到 ...

Sat Jun 24 22:12:00 CST 2017 0 14164
select into frominsert into select用法區別

select into 和inserrt into 都能滿足復制表的作用 但是二者又有區別 select into : 語法 :SELECT vale1, value2 into Table2 from Table1 此處 創建目標表table2 並 把table1 中的數據復制到 ...

Wed Aug 26 17:21:00 CST 2020 0 709
select into frominsert into select用法

SELECT INTO 和 INSERT INTO SELECT 兩種表復制語句 Insert是T-sql中常用語句,Insert INTO table(field1,field2,...) values(value1,value2,...)這種形式的在應用程序開發 ...

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

復制舊表數據至新表 1、INSERT INTO SELECT語句   語句形式為:Insert into Table2(field1,field2,...) select value1,value2,... from Table1   注意:(1)要求目標表Table2必須存在,並且字段 ...

Wed May 19 19:45:00 CST 2021 0 4522
 
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