sql server 读取表结构

SELECT 
    表名=case when a.colorder=1 then d.name else ‘‘ end, 
    字段序号=a.colorder, 
    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, 
    字段名=a.name, 
    类型=b.name, 
    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, 
    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 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 not like ‘%dict%‘ --如果只查询指定表,加上此条件 
order by a.id,a.colorder