SQL Server 2008 R2：纯SQL查看数据库描述文档

最新推荐文章于 2025-08-20 20:08:44 发布

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最新推荐文章于 2025-08-20 20:08:44 发布

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分类专栏： SQL Server 文章标签： sql server 数据库 sql properties join 文档

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本文提供了一段SQL脚本，用于查询数据库中表的详细信息，包括表序号、表名、表描述、字段序号、字段名等，并能显示各字段是否为主键或标识字段。

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/***********************************
描述：纯SQL查看数据库描述文档
作者：jehn
联系：jehn@foxmail.com
时间：2011-12-07 14:33:30
************************************/

SELECT

    (case when a.colorder=1 then
    (
    select CAST(表序号 as nvarchar) from
(SELECT d.name,
    row_number() over(order by d.name) 表序号
FROM syscolumns a join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
where a.colorder=1) as tmp where name=d.name
    )
     else '' end) 表序号,
    (case when a.colorder=1 then d.name else '' end) 表名,
    (case when a.colorder=1 then
    (
    select value from sys.extended_properties where minor_id=0 and major_id= OBJECT_ID(d.name)
    ) else '' end) 表描述,
    a.colorder 字段序号,
    a.name 字段名,
    (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 标识,
    (case when (SELECT count(*)
                FROM sysobjects
                WHERE (name in (SELECT name
                                FROM sysindexes
                                WHERE (id = a.id) AND (indid in (SELECT indid
                                                                 FROM sysindexkeys
                                                                 WHERE (id = a.id) AND (colid in (SELECT colid
                                                                                                  FROM syscolumns
                                                                                                  WHERE (id = a.id) AND (name = a.name)
                                                                                                  )
                                                                                        )
                                                                )
                                                        )
                                )
                        ) AND (xtype = 'PK')
                ) > 0 then '√' else '' end) 主键,
    b.name 类型,
    a.length 占用字节数,
    COLUMNPROPERTY(a.id,a.name,'PRECISION') as 长度,
    --isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小数位数,
    COLUMNPROPERTY(a.id,a.name,'Scale') 小数位数,
    (case when a.isnullable=1 then '√'else '' end) 允许空,
    isnull(e.text,'') 默认值,
    isnull(g.[value],'') AS 字段说明

FROM syscolumns a
    left join systypes b on a.xtype=b.xusertype
    inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
    left join syscomments e on a.cdefault=e.id
    left join sys.extended_properties g on a.id=g.major_id AND a.colid = g.minor_id   --where d.name='T_SickRoom'
order by d.name,a.colorder

------where d.name='T_SickRoom' 也可以指定单张表