如何在SQL Server 中添加注释

Posted 2023-04-07

我想在我建立表的列名那 添加中文注释 请教高手！

首先，要明确一点的是注释存在sysproperties表中而不是跟创建的表捆绑到一起的
具体使如方法如下：
一、使用SQL Server窗口创建表是会有注释窗口；
二、使用SQL语句的comment语句，该语句放置在create table()后面，如：
comment on table table_name is \'table_mark\'
comment on column table_name."Column" is \'column_mark\'
三、调用系统存储过程sp_addextendedproperty来添加注释，如：
EXECUTE sp_addextendedproperty N\'MS_Description\',N\'雇员信息\',N\'user\',N\'dbo\',N\'table\',N\'Employee\',NULL,NULL
EXECUTE sp_addextendedproperty N\'MS_Description\',N\'主键ID,自动增加\',N\'user\',N\'dbo\',N\'table\',N\'Employee\',N\'column\',N\'EmployeeID\'
或者
EXEC sys.sp_addextendedproperty @name=N\'MS_Description\', @value=N\'角色ID\' , @level0type=N\'SCHEMA\',@level0name=N\'dbo\', @level1type=N\'TABLE\',@level1name=N\'CharData\', @level2type=N\'COLUMN\',@level2name=N\'charid\'
GO 参考技术A -- 表加注释
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'注释内容' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'表名'

-- 字段加注释
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'注释内容' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'表名', @level2type=N'COLUMN',@level2name=N'字段名' 参考技术B 格式一：/*注释文本*/
格式2：--注释文本

Sql Server 添加更新查询表注释字段注释相关sql

/*******************字段添加注释*********************/ 

if not exists (SELECT
C.value AS column_description
FROM sys.tables A
INNER JOIN sys.columns B ON B.object_id = A.object_id
INNER JOIN sys.extended_properties C ON C.major_id = B.object_id AND C.minor_id = B.column_id
WHERE A.name = N‘表名‘ and B.name=N‘字段名‘)
   EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘字段注释‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘表名‘, @level2type=N‘COLUMN‘,@level2name=N‘字段名‘

EXEC sp_updateextendedproperty @name=N‘MS_Description‘, @value=N‘字段注释‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘表名‘, @level2type=N‘COLUMN‘,@level2name=N‘字段名‘


/*******************表添加注释*********************/ 

if not exists (SELECT
A.name,
C.value
FROM sys.tables A
inner JOIN sys.extended_properties C ON C.major_id = A.object_id  and minor_id=0
WHERE A.name = N‘表名‘)
EXEC sys.sp_addextendedproperty @name=N‘MS_Description‘, @value=N‘表注释‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘表名‘

EXEC sp_updateextendedproperty @name=N‘MS_Description‘, @value=N‘表注释‘ , @level0type=N‘SCHEMA‘,@level0name=N‘dbo‘, @level1type=N‘TABLE‘,@level1name=N‘表名‘


/*******************查询注释相关sql***********************/
--查看表的注释
SELECT
A.name,
C.value
FROM sys.tables A
inner JOIN sys.extended_properties C ON C.major_id = A.object_id  and minor_id=0
WHERE A.name = N‘表名‘

--查看字段的注释
SELECT
A.name AS table_name,
B.name AS column_name,
C.value AS column_description
FROM sys.tables A
INNER JOIN sys.columns B ON B.object_id = A.object_id
LEFT JOIN sys.extended_properties C ON C.major_id = B.object_id AND C.minor_id = B.column_id
WHERE A.name = N‘luobo‘