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