sqlserver 数据字典查询

-- 数据字典

SELECT

??????? (case when a.colorder=1 then d.name else '' end)表名,

??????? 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,'PRECISION') as 长度,

????? isnull(COLUMNPROPERTY(a.id,'Scale'),0) as 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.major_id

order by a.id,a.colorder

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!