成人AV在线无码|婷婷五月激情色,|伊人加勒比二三四区|国产一区激情都市|亚洲AV无码电影|日av韩av无码|天堂在线亚洲Av|无码一区二区影院|成人无码毛片AV|超碰在线看中文字幕

oracle怎么實現(xiàn)分頁 oracle數(shù)據(jù)庫怎么實現(xiàn)分頁?

oracle數(shù)據(jù)庫怎么實現(xiàn)分頁?您好:oracle查詢分頁可分為兩種情況,一種使用的是rownum ,另外一種則是使用 row_number() over(order by column_name d

oracle數(shù)據(jù)庫怎么實現(xiàn)分頁?

您好:oracle查詢分頁可分為兩種情況,一種使用的是rownum ,另外一種則是使用 row_number() over(order by column_name desc)。1.使用rownum分頁查詢,可用以下方式:select t2.* from (select t1.*,rownum as rn from table_name t1 where 1=1 and rownum <= page * page_size) t2 where t2.rn > (page - 1) * page_size2.使用 row_number() over() 分頁查詢select t2.* from (select t1.*,row_number() over(order by column_name desc) as rn from table_name t1 where 1=1 )t2 where t2.rn > (page-1)* page_size and t2.rn <= page * page_size這種方式,也是可以分頁的。希望能幫助您!

jdbctemplate怎么實現(xiàn)oracle分頁查詢?

sql語句如下:

分頁1

SELECT *

FROM (Select ROWNUM AS ROWNO, T.*

from 表名 T(別名)

where 表字段 between to_date("20060501", "yyyymmdd") and to_date("20060731", "yyyymmdd")

AND ROWNUM

WHERE TABLE_ALIAS.ROWNO >= 10

經過測試,此方法成本最低,只嵌套一層,速度最快,即使查詢的數(shù)據(jù)量再大,也幾乎不受影響,速度依然.

分頁2:

SELECT *

FROM (SELECT TT.*, ROWNUM AS ROWNO

FROM (Select t.*

from 表名 T(別名)

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

to_date("20060531", "yyyymmdd")

ORDER BY FACT_UP_TIME, flight_no) TT(別名二)

WHERE ROWNUM

where TABLE_ALIAS.rowno >= 10

經過測試,此方法隨著查詢范圍的擴大,速度也會越來越慢,