Oracle实现分页查询的SQL语法汇总

本文实例汇总了Oracle实现分页查询的SQL语法，整理给大家供大家参考之用，详情如下：

1.无ORDER BY排序的写法。(效率最高)

经过测试，此方法成本最低，只嵌套一层，速度最快！即使查询的数据量再大，也几乎不受影响，速度依然！

sql语句如下：

SELECT *

FROM ( Select ROWNUM AS ROWNO, T.*

from k_task T

where Flight_date between to_date( '20060501' , 'yyyymmdd' ) and

to_date( '20060731' , 'yyyymmdd' )

AND ROWNUM <= 20) TABLE_ALIAS

WHERE TABLE_ALIAS.ROWNO >= 10;

2.有ORDER BY排序的写法。(效率最高)

经过测试，此方法随着查询范围的扩大，速度也会越来越慢！

sql语句如下：

								
									 SELECT   * 

									    FROM   (  SELECT   TT.*, ROWNUM   AS   ROWNO 

									         FROM   (  Select   t.* 

									             from   k_task T 

									             where   flight_date   between   to_date(  '20060501'  ,   'yyyymmdd'  )   and 

									                to_date(  '20060531'  ,   'yyyymmdd'  ) 

									             ORDER   BY   FACT_UP_TIME, flight_no) TT 

									        WHERE   ROWNUM <= 20) TABLE_ALIAS 

									 where   TABLE_ALIAS.rowno >= 10;

3.无ORDER BY排序的写法。(建议使用方法1代替)

此方法随着查询数据量的扩张，速度会越来越慢！

sql语句如下：

SELECT *

FROM ( Select ROWNUM AS ROWNO, T.*

from k_task T

where Flight_date between to_date( '20060501' , 'yyyymmdd' ) and

to_date( '20060731' , 'yyyymmdd' )) TABLE_ALIAS

WHERE TABLE_ALIAS.ROWNO <= 20

AND TABLE_ALIAS.ROWNO >= 10;

TABLE_ALIAS.ROWNO between 10 and 100;

4.有ORDER BY排序的写法.(建议使用方法2代替)

此方法随着查询范围的扩大，速度也会越来越慢！

sql语句如下：

SELECT *

FROM ( SELECT TT.*, ROWNUM AS ROWNO

FROM ( Select *

from k_task T

where flight_date between to_date( '20060501' , 'yyyymmdd' ) and

to_date( '20060531' , 'yyyymmdd' )

ORDER BY FACT_UP_TIME, flight_no) TT) TABLE_ALIAS

where TABLE_ALIAS.rowno BETWEEN 10 AND 20;

5.另类语法。(有ORDER BY写法）

该语法风格与传统的SQL语法不同，不方便阅读与理解，为规范与统一标准，不推荐使用。此处贴出代码供大家参考之用。

sql语句如下：

With partdata as (

SELECT ROWNUM AS ROWNO, TT.* FROM ( Select *

from k_task T

where flight_date between to_date( '20060501' , 'yyyymmdd' ) and

to_date( '20060531' , 'yyyymmdd' )

ORDER BY FACT_UP_TIME, flight_no) TT

WHERE ROWNUM <= 20)

Select * from partdata where rowno >= 10;

6.另类语法。(无ORDER BY写法）

With partdata as (

Select ROWNUM AS ROWNO, T.*

From K_task T

where Flight_date between to_date( '20060501' , 'yyyymmdd' ) and

To_date( '20060531' , 'yyyymmdd' )

AND ROWNUM <= 20)

Select * from partdata where Rowno >= 10;

相信本文所述代码能够对大家有一定的参考借鉴价值。

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更新时间：2023-05-14 阅读：32次