MySQL的分页查询

不包含排序

–效率低

select * from (select rownum rn, d.* from DJDRIVER d )p where p.rn<=20 and p.rn>=10;

select * from (select rownum rn, d.* from DJDRIVER d )p where p.rn between 10 and 20;

–效率高

select * from (select rownum rn, d.* from DJDRIVER d where rownum<=20 )p where p.rn>=10;

包含排序
–排序+区间查询1（效率低）

select * from (select rownum rn, t.* from ( select d.* from DJDRIVER d order by DJDRIVER_DRIVERTIMES)t )p where p.rn<=20 and p.rn>=10;

select * from (select rownum rn, t.* from ( select d.* from DJDRIVER d order by DJDRIVER_DRIVERTIMES)t )p where p.rn between 10 and 20;

–排序+区间查询2（效率高）

select * from (select rownum rn, t.* from ( select d.* from DJDRIVER d order by DJDRIVER_DRIVERTIMES)t where rownum<=20 )p where p.rn>=10;

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