select (case when a.colorder=1 then d.name else '' end) as 表名, 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 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, 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.usertype 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='COM_SEQUENCE' order by a.id,a.colorder
上面的比较复杂,下面是简化过的
select (case when a.colorder=1 then d.name else '' end) as tableName, a.name as fieldName, isnull(g.[value],'') as fieldDes from syscolumns a inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties' left join sys.extended_properties g on a.id=g.major_id and a.colid =g.minor_id --where d.name='' --要查询的表 order by a.id,a.colorder