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,‘PRECISION‘),   小数位数=isnull(COLUMNPROPERTY(a.id,a.name,‘Scale‘),0),   答应空=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‘ --假如只查询指定表,加上此条件   order by a.id,a.colorder