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.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 sys.extended_properties g on a.id=g.major_id and a.colid=g.minor_id
left join sys.extended_properties f on d.id=f.major_id and f.minor_id=0
--where d.name=\'orders\' --如果只查询指定表,加上此条件
order by a.id,a.colorder