sql 查询表的所有详细信息

SELECT   
(case when a.colorder=1 then d.name else \'\' end) as 表名,--如果表名相同就返回空  
     a.colorder as 字段序号,  
     a.name as 字段名,  
     (case when COLUMNPROPERTY( a.id,a.name, \'IsIdentity\' )=1 then \'√\' else \'\' end) as 标识,  
     (case when (SELECT count(*) FROM sysobjects--查询主键  
                     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) as 主键,--查询主键END  
b.name as 类型,  
a.length as 占用字节数,  
COLUMNPROPERTY(a.id,a.name,\'PRECISION\' ) as    长度,  
isnull(COLUMNPROPERTY(a.id,a.name,\'Scale\' ),0) as 小数位数,  
(case when a.isnullable=1 then \'√\' else \'\' end) as 允许空,  
isnull(e.text,\'\' ) as 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.minor_id   
     where d.name=\'TestTable\' --所要查询的表  
order by a.id,a.colorder