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alter table tbl_name add col_name type
例如,给表增加一列weight
mysql>alter table...
alter table tbl_name add col_name type
例如,给表增加一列weight
mysql>alter table pet add weight int
删除列
alter table tbl_name drop col_name
例如，删除列weight：
mysql>alter table pet drop weight
改变列
alter table tbl_name modify col_name type
例如，改变weight的类型：
mysql> alter table pet modify weight samllint
另一种方法是：
alter table tbl_name change old_col_name col_name type
例如：
mysql> alter table pet change weight weight samllint
给列更名
mysql>alter table pet change weight wei
给表更名
alter table tbl_name rename new_tbl
例如，把pet表更名为animal
mysql>alter table pet rename animal
-alter table tbl_name add col_name type for example, to form an increase in weight mysql> alter table pet add weight int Remove Columns alter table tbl_name drop col_name For example, the deletion of column weight: mysql> alter table pet drop weight change out alter table tbl_name modify col_name type for example, the type of weight change: mysql> alter table pet modify w
- 2022-02-11 13:09:52下载
- 积分：1
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this a project about java media framework it is a good introduction to java medi...
this a project about java media framework it is a good introduction to java media framework-this is a project about java media framework it is a good introduction to java media framework
- 2022-01-26 18:35:31下载
- 积分：1
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查询sun公司软件java的api，
查询sun公司软件java的api，-failed to translate
- 2022-12-17 00:00:03下载
- 积分：1
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有关于jsp的编程方面介绍的书籍，很好，找了很久
有关于jsp的编程方面介绍的书籍，很好，找了很久-Jsp on the introduction of programming books, well, look for a long time
- 2022-02-15 18:19:24下载
- 积分：1
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beginJsp2.0外文书籍源代码
beginJsp2.0外文书籍源代码-beginJsp2.0 language source code books
- 2022-02-14 23:50:01下载
- 积分：1
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JAVA数字图像处理，对图像进行量化！图像Miss.jpg为256×256，量化值K可以为256，128，64，32，16，8，4，2...
JAVA数字图像处理，对图像进行量化！图像Miss.jpg为256×256，量化值K可以为256，128，64，32，16，8，4，2-JAVA Digital Image Processing, to quantify the image! Miss.jpg images for 256 × 256, to quantify the value of K can 256,128,64,32,16,8,4,2
- 2022-10-18 20:50:02下载
- 积分：1
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用java写的平行投影算法的源代码，比较简单好用
用java写的平行投影算法的源代码，比较简单好用-using java to write parallel projection algorithm source code, relatively simple handy
- 2022-03-04 13:01:47下载
- 积分：1
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JSP聊天室,挺不错的，看看吧
JSP聊天室,挺不错的，看看吧-JSP chat rooms, sounds very good, let"s see it
- 2022-03-15 01:09:55下载
- 积分：1
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Players realize a number of simple playback of video and MP3 player
播放器实现了一些简单的播放功能视频和MP3的播放-Players realize a number of simple playback of video and MP3 player
- 2022-02-02 03:58:16下载
- 积分：1
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this version is only interesting for people that want to generate their own leve...
this version is only interesting for people that want to generate their own levels (need JDK to compile new level).
- 2023-07-10 02:45:03下载
- 积分：1
