［生成数据字典］取数据库表中字段的描述信息

Sql2000: ========================== SELECT SysObjects.Name, -- 表名 SysColumns.Name, -- 字段名 SysTypes.Name, -- 字段类型 SysColumns.Length, -- 字段长度 SysProperties.Value -- 字段描述 FROM SysObjects, SysTypes, SysColumns LEFT JOIN SysPro

Sql2000:
==========================

SELECT SysObjects.Name, --表名
SysColumns.Name, --字段名
SysTypes.Name, --字段类型
SysColumns.Length, --字段长度
SysProperties.Value --字段描述
FROM SysObjects,
SysTypes,
SysColumns
LEFT JOIN SysProperties
ON (Syscolumns.Id = Sysproperties.Id AND Syscolumns.Colid = Sysproperties.Smallid)
WHERE (Sysobjects.Xtype ='u' OR Sysobjects.Xtype ='v')
AND Sysobjects.Id = Syscolumns.Id
AND SysTypes.XType = Syscolumns.XType
AND Sysobjects.Name = 'Contract' --指字要查找的表名
ORDER BY smallid

SqlServer2005:
=============================

SELECT
表名 = case when a.colorder=1 then d.name else '' end,
表说明 = case when a.colorder=1 then isnull(f.value,'') 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 parent_obj=a.id 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.xusertype=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
left join

sys.extended_properties f
on
d.id=f.major_id and f.minor_id=0
where
d.name='Contract' --如果只查询指定表,加上此条件
order by
a.id,a.colorder

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