Oracle的分頁查詢

Oracle的分頁查詢

示例代碼：

/*
    Oracle分頁查詢：
        頁碼【pageNo】: 3
        頁記錄【pageSize】：4
        偏移量【offset】: (pageNo-1)*pageSize=8
*/
-- 通過偏移量過濾查詢之前頁的記錄數: >offset
select * from (
    -- 通過當前頁最大的記錄數過濾查詢: <=offset+pageSize
    select e.*,ROWNUM row_ from (
        -- 排序等條件可以放在這里查詢
        select * from emp order by empno
    ) e where ROWNUM <= 8+4
) where row_ > 8

 

結果展示：

select * from emp order by empno

select * from ( select e.*,ROWNUM row_ from ( select * from emp order by empno ) e where ROWNUM <= 8+4 ) where row_ > 8