背景：

某表忽然出现查询非常缓慢的情况，cost 100+ 秒以上；严重影响生产。

Oracle入门教程：leading vs ordered hint 

Oracle hint 实践一列 leanding 驱动表和hash多块读取

Oracle优化常用hint语句

Oracle调优hint提示

原SQL：

explain plan for
select * from (
select ID id,RET_NO retNo, FROM_SYS fromSy, TO_SYS toSys, COMMAND_CODE commandCode, COMMAND, STATUS,
EXT_CODE, ORIGN_CODE orignCode,error_message errorMessage, RE_F, RET_MSG retMsg
from interface_table where ((command_code in('AASSS')
   and  status in('F','E') and (re_f = 'N') and FROM_SYS = 'MEE')
   or (COMMAND_CODE in('XXXX','XXXX9') and FROM_SYS = 'EXT' and RE_F = 'N')
   ) and MOD(id, 1) = 0  order by id) where rownum