SQL 分页查询
DB2:
DB2分页查询
SELECT * FROM (Select 字段1,字段2,字段3,rownumber() over(ORDER BY 排序用的列名 ASC) AS rn from 表名) AS a1 WHERE a1.rn BETWEEN 10 AND 20
以上表示提取第10到20的纪录
select * from (select rownumber() over(order by id asc ) as rowid from table where rowid <=endIndex ) where rowid > startIndex
如果Order By 的字段有重复的值,那一定要把此字段放到 over()中
select * from ( select ROW_NUMBER() OVER(ORDER BY DOC_UUID DESC) AS ROWNUM, DOC_UUID, DOC_DISPATCHORG, DOC_SIGNER, DOC_TITLE from DT_DOCUMENT ) a where ROWNUM > 20 and ROWNUM <=30
增加行号,不排序
select * from ( select ROW_NUMBER() OVER() AS ROWNUM,t.* from DT_DOCUMENT t ) a
增加行号,按某列排序
select * from ( select ROW_NUMBER() OVER( ORDER BY DOC_UUID DESC ) AS ROWNUM,t.* from DT_DOCUMENT t ) a
Mysql:
最简单
select * from table limit start,pageNum
比如从10取20个数据
select * from table limit 10,20
Oracle:
select * from (select rownum,name from table where rownum <=endIndex ) where rownum > startIndex
例如从表Sys_option(主键为sys_id)中从10条记录还是检索20条记录,语句如下:
SELECT *
FROM (SELECT ROWNUM R,t1.* From Sys_option where rownum < 30 ) t2
Where t2.R >= 10
sql server:
例如从表Sys_option(主键为sys_id)中从10条记录还是检索20条记录,语句如下:
SELECT *
FROM (SELECT ROWNUM R,t1.* From Sys_option where rownum < 30 ) t2
Where t2.R >= 10