SQLServer查询表结构

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 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.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   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