修改SQL字段说明

以下示例将标题属性添加到 Address 表中的 PostalCode 列。

USE AdventureWorks2008R2;

GO

EXEC sp_addextendedproperty 

@name = N'Caption', @value = 'Postal code is a required column.',

@level0type = N'Schema', @level0name = Person,

@level1type = N'Table',  @level1name = Address,

@level2type = N'Column', @level2name = PostalCode;

GO

以下示例对 T1 表的 ID 列更新 Caption 属性的值。

USE AdventureWorks2008R2;

GO

CREATE TABLE T1 (id int , name char (20));

GO

EXEC sp_addextendedproperty 

    @name = N'Caption'

    ,@value = N'Employee ID'

    ,@level0type = N'Schema', @level0name = dbo

    ,@level1type = N'Table',  @level1name = T1

    ,@level2type = N'Column', @level2name = id;

GO

--Update the extended property.

EXEC sp_updateextendedproperty 

    @name = N'Caption'

    ,@value = 'Employee ID must be unique.'

    ,@level0type = N'Schema', @level0name = dbo

    ,@level1type = N'Table',  @level1name = T1

    ,@level2type = N'Column', @level2name = id;

GO