if I create a table as below:
CREATE TABLE table1(
column1 varchar(50),
column2 varchar(50),
column3 varchar(50),
column4 varchar(50));
what is the code for adding the column named “columnX” after column2 to the table shown above?
ALTER TABLE table1 ADD columnX varchar(50)
可以add a new column,但怎么加到指定位置呢(after column2)?
请教数据库专家个初级问题,这个用t-sql怎么写?
所有跟帖:
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美国老土,it's a piece of cake for you, thanks!
-戏雨飞鹰-
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04/27/2009 postreply
10:45:17
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no can't do, have to drop and recreate
-forweb-
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04/27/2009 postreply
10:52:41
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Thanks. This is just what I thought. but
-戏雨飞鹰-
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04/27/2009 postreply
10:59:59
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Select * into table2 from table1
-oops_yz-
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04/27/2009 postreply
11:06:17
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好! 谢谢:)。就是想确定一下:没有办法可以直接一步到位?
-戏雨飞鹰-
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04/27/2009 postreply
11:10:41
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wow!!!
-HappyNow?!-
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04/27/2009 postreply
11:35:05
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wow!!! fancy to see you again, HappyNow?!! . how r u doing, bud
-戏雨飞鹰-
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04/27/2009 postreply
11:49:01
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In MySQL, you can easily do it.
-竹杉林-
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04/27/2009 postreply
12:28:25
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oh, I love it. But t-sql doesn't support the key "after" ..:)
-戏雨飞鹰-
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04/27/2009 postreply
12:38:32
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then I don't know.
-竹杉林-
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04/27/2009 postreply
12:51:33
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Don't you hint t-sql supports the key "before"? haha.
-竹杉林-
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04/27/2009 postreply
12:52:42
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为什么要非要插入到这个位置呢?
-小丹尼-
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04/27/2009 postreply
13:25:20
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agreed; but "look/feel" good to the designer -:)))
-HappyNow?!-
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04/27/2009 postreply
13:30:59
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我觉得这没有必要,本来数据和表现就应该分开
-小丹尼-
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04/27/2009 postreply
13:34:27
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when you use "select * from",
-竹杉林-
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04/27/2009 postreply
13:32:45
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个人以为,select *不是一个好的SQL习惯
-小丹尼-
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04/27/2009 postreply
13:43:23
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有道理。谢谢。在学这个,是书上的一道题目:)
-戏雨飞鹰-
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04/27/2009 postreply
13:54:57
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帮你查了一下
-安心草-
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04/27/2009 postreply
14:06:30
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xiexiexiexie, my smarty:)
-戏雨飞鹰-
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04/27/2009 postreply
14:15:12
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In SQL management studio
-ExpectingMM-
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04/27/2009 postreply
18:40:41
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Thanks, ExpectingMM. very busy?
-戏雨飞鹰-
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04/27/2009 postreply
20:25:56
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agree,基本上schama的改变不太用t-sql来做
-撅着挺好-
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04/28/2009 postreply
04:43:48
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:) thanks.
-戏雨飞鹰-
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04/28/2009 postreply
14:00:05