在Microsoft Sql Server2000查询表的字段

2010年3月25日星期四

http://topic.csdn.net/t/20050401/14/3900896.html

在Microsoft Sql Server2000查询表的字段

获得数据库中一个表的所有的字段信息

在Microsoft Sql Server2000查询表的字段名称、字段类型、字段类型的长度等基本信息

SELECT

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

 a.colorder N'字段序号',

 a.name N'字段名',

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

 b.name N'类型',

 a.length N'占用字节数',

 COLUMNPROPERTY(a.id,a.name,'PRECISION') as N'长度',

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

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

 isnull(e.text,'') N'默认值',

 isnull(g.[value],'') AS N'字段说明'

--into ##tx

 

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 object_name(a.id),a.colorder