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java summary prepared by the notebook, the notebook similar to windows
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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
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FCKeditor.Java v2.4 source code
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- 2022-05-13 10:28:21下载
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这是一个TetrisApplet程序,,是用JAVA开发的,提大家学习
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Hibernate的一个实例,在windows2000/eclipse/jbuilderX上已通过。
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- 2022-01-26 01:32:46下载
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一个基于JBOSS3.26的JMS(queue方式)代码实例
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- 2022-04-27 21:32:57下载
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Can be embedded in the rough set classification algorithm weka program
可嵌入weka 的粗糙集分类算法程序
-Can be embedded in the rough set classification algorithm weka program
- 2022-03-21 01:33:15下载
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自己做的计算器。欢迎大家参考
自己做的计算器。欢迎大家参考-Calculator
- 2022-03-24 09:05:49下载
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看到公式原图像(原灰度图像8bits)
参见公式的原始图像(8位原始灰度图像)
- 2022-03-18 18:10:55下载
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外文网站上下载的JSP图形编程(3)
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