- oracle:
- select a.aid aid , b.bid bid ,c.cid cid , d.did did , e.eid eid
- from
- tablea a ,
- tableb b ,
- tablec c ,
- tabled d ,
- tablee e
- where
- a.aid = b.aid (+)
- and a.aid = c.aid(+)
- and b.bid = d.bid (+)
- and d.did = e.eid (+)
- order by a.aid , b.bid , c.cid , d.did ,e.eid
- ;
- mysql:
- select a.aid aid , b.bid bid ,c.cid cid , d.did did , e.eid eid
- from
- tablea a left join
- (
- tableb b left join
- (
- tabled d left join tablee e
- on (d.did = e.eid)
- )
- on (b.bid = d.bid )
- )
- on ( a.aid = b.aid)
- left join tablec c
- on a.aid = c.aid
- order by a.aid , b.bid , c.cid , d.did ,e.eid
- ;
Oracle 与 Mysql 多表连接对比
最新推荐文章于 2025-04-09 17:23:49 发布