Oracle SQL性能优化系列学习一(2)
a. selectpin,namefrompeoplewherepin=:blk1.pin; selectpin,namefrompeoplewherepin=:blk1.pin; b. selectpin,namefrompeoplewherepin=:blk1.ot_ind; selectpin,namefrompeoplewherepin=:blk1.ov_ind; 上一页
a.
select pin , name from people where pin = :blk1.pin;
select pin , name from people where pin = :blk1.pin;
b.
select pin , name from people where pin = :blk1.ot_ind;
select pin , name from people where pin = :blk1.ov_ind;
上一页
- 上一篇：Oracle Index 的三个问题
- 下一篇：Oracle数据表分区的策略
精彩图集
精彩文章