SELECT 序号 = a.colorder, 字段名称 = a.name, 字段类型 = c.name, 字段长度 = COLUMNPROPERTY(a.id,a.name,'PRECISION'), 允许为空 = case when a.isnullable=1 then '√'else '' end, 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 distinct name FROM sysindexes WHERE indid in(SELECT distinct indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end, 默认值 = isnull(b.text,''), 字段说明 = isnull(e.[value],'') FROM syscolumns a left join syscomments b on a.cdefault=b.id join systypes c on a.xusertype=c.xusertype join sysobjects d on a.id=d.id and d.xtype='U' left join sys.extended_properties e on a.id=e.major_id and a.colid=e.minor_id where d.name='Departments' order by a.colorder