mysql与sqlserver建表,MySQL 和SQLserver 创建表注释字段的差别

mysql 的例子

DROP TABLE IF EXISTS `department`;

CREATE TABLE `department` (

`DepartmentID` char(3) NOT NULL COMMENT '员工部门号，主键',

`DepartmentName` char(20) NOT NULL COMMENT '部门号',

`Note` text COMMENT '备注',

PRIMARY KEY (`DepartmentID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

sqlserver 的例子

CREATE TABLE [dbo].[Department](

[DepartmentID] [char](3) NOT NULL,

[DepartmentName] [char](20) NOT NULL,

[Note] [text] NULL,

CONSTRAINT [PK_Department] PRIMARY KEY CLUSTERED

(

[DepartmentID] ASC

)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO

SET ANSI_PADDING OFF

GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'员工部门号，主键' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Department', @level2type=N'COLUMN',@level2name=N'DepartmentID'

GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'部门名' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Department', @level2type=N'COLUMN',@level2name=N'DepartmentName'

GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'备注' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Department', @level2type=N'COLUMN',@level2name=N'Note'

GO

** 可以看出，，MySQL 比SQLserver 更加的方便去注释，，**