如何用SQL创建一个表格?

2025-03-16 17:37:48
推荐回答(1个)
回答1:

1、打开SQLServer,在数据库处,右键数据库,点击新建数据库。

2、然后,命名为LX,点击确定,创建数据库,如图所示。

3、创建完,没有看到新建数据库的,在数据库那右键,刷新。如图所示就出来了。

4、接着,找到LX数据库下的表,右键,新建表,如图所示。

5、比如建立一个简单的部门表,简单部门表包含(部门编号、部门名),SQLServer
是可以用中文做列名的,但是为了能够被他人看懂,我们一般用英文,如图所示,

DepertNo,DepertName,我喜欢在列名前加一个fld_,个人养成的一种习惯,看自己的习惯吧。因为我们有时候转换成英文,可能会与SQL的某些关键字起冲突,因此我加了个fld_。此外讲一下varchar为类型,10为长度,2个长度为1个汉字。

6、表设置主键,每个表只能有一个主键,右键表的最左侧,点击设置主键,最右边为空自动去勾,主键是不能为空的。一般部门号不会为空,部门名也是不会为空,所以也去掉勾,不允许为null。

7、输入好列后,右键标题,然后点击保存Table_1,如图所示,表名前我习惯加TBL_。

8、如图所示,为SQL语句创建表。

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