====================sql2000版本=======================================
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,'divCISION'),
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 sysproperties g on a.id=g.id and a.colid=g.smallid
left join sysproperties f on d.id=f.id and f.smallid=0
--where d.name='要查询的表' --如果只查询指定表,加上此条件
order by a.id,a.colorder
========================sql2005版本以上==============================================
select 表名=(case when b.colorder=1 then a.name else '' end),
表說明=( case when b.colorder=1 then c.value else '' end),b.colid 序號,b.name 字段名,
标识=case when COLUMNPROPERTY( b.id,b.name,'IsIdentity')=1 then '√'else '' end,
主鍵=case when exists(select 1 from sys.sysobjects where xtype='PK' and parent_obj=b.id and name in(
select name from sys.sysindexes where indid in(select indid from sys.sysindexkeys where id=b.id and colid=b.colid))) then '' else '' end,
類型=d.name,
b.length 占用字節,
長度=COLUMNPROPERTY(b.id,b.name,'Precision'),
允許空=case when COLUMNPROPERTY(b.id,b.name,'AllowsNull')=1 then '√' else '' end,
小数位数=isnull(COLUMNPROPERTY(b.id,b.name,'Scale'),0),
默認值=e.text,
字Á段說明=isnull(f.value,'')
from sys.sysobjects a inner join sys.syscolumns b on a.id=b.id and a.xtype='U' and a.name<>'dtproperties'
left join sys.extended_properties c on a.id=c.major_id and c.minor_id=0
left join sys.systypes d on b.xusertype=d.xusertype
left join sys.syscomments e on e.id=b.cdefault
left join sys.extended_properties f on b.id=f.major_id and b.colid=f.minor_id
where a.name='DEPT' order by b.colid --
a.name='DEPT'表示查看dept表的结构信息================
Sys.sysobjects 說明: http://msdn.microsoft.com/zh-cn/library/ms177596.aspx
sys.sysindexes說明:
http://technet.microsoft.com/zh-cn/library/ms190283.aspx
sys.sysindexkeys說明:
http://technet.microsoft.com/zh-cn/library/ms178551.aspx
sys.syscolumns說明:
http://technet.microsoft.com/zh-cn/library/ms186816.aspx
sys.extended_properties說明:
http://msdn.microsoft.com/zh-cn/vstudio/ms177541(SQL.90).aspx
sys.systypes說明:
http://technet.microsoft.com/zh-cn/library/ms175109.aspx
sys.syscomments說明:
http://technet.microsoft.com/zh-cn/library/ms186293.aspx
以上所用到的一些系统视图的详情说明链接。。。，以防看不懂的同志们