sql2000,sql2005 数据字典生成代码

最新推荐文章于 2024-10-28 18:59:56 发布

转载最新推荐文章于 2024-10-28 18:59:56 发布 · 61 阅读

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原文链接：http://www.cnblogs.com/greenerycn/archive/2008/01/23/sqldict.html

本文提供了一种在SQL Server 2005和SQL Server 2000中查询表结构的详细SQL代码，包括字段名、字段类型、是否为主键、标识、允许空等属性，对于数据库管理和维护人员来说非常实用。

SQL2005:

SELECT  表名=case when a.colorder=1 then d.name else '' end,
字段序号=a.colorder,
字段名=a.name,
标识=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
主键=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and name
   in (  SELECT name FROM sysindexes WHERE indid
    in(   SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid  )))
     then '√' else '' end,
类型=b.name,
--占用字节数=a.length,
长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
允许空=case when a.isnullable=1 then '√'else '' end,
默认值=isnull(e.text,''),
字段说明=isnull(g.[value],'')
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
   order by a.id,a.colorder

SQL2000代码

SELECT 表名=case when a.colorder=1 then d.name else '' end,

字段序号=a.colorder,

字段名=a.name,

标识=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,

主键=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and name

in ( SELECT name FROM sysindexes WHERE indid

in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid )))

then '√' else '' end,

类型=b.name,

--占用字节数=a.length,

长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),

小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),

允许空=case when a.isnullable=1 then '√'else '' end,

默认值=isnull(e.text,''),

字段说明=isnull(g.[value],'')

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 sysproperties g on a.id=g.id

and a.colid=g.smallid

order by a.id,a.colorder

转载于:https://www.cnblogs.com/greenerycn/archive/2008/01/23/sqldict.html