分页sql如何写？谢谢了

[csm810902]

已知oracle表结构如下：
CREATE TABLE person
(

id number(5) NOT NULL PRIMARY KEY ,
pid varchar2(32) ,
name varchar2(32) ,
password varchar2(20)
)

表里有好多条记录，求一条语句，能查出表中第11条记录到第20条记录，谢谢了。

[computermajorsmc]

好问题，可是我也一时想不出来呢，接分洛。。。。。。。。。。。

[duqiangcise]

SELECT * FROM PERSON
WHERE ROWNUM <=20
MINUS
SELECT * FORM PERSON
WHERE ROWNUM<11;

SELECT *
FROM (
SELECT *,ROWNUM RN
FROM PERSON
)WHERE RN BETWEEN 11 AND 20;

[ujjixcige]

oracle中的rownum字段是记录行数的，但是是个虚字段，不能用大于，如当你的条件是rownum > 10的时候，它先从1开始判断，记录1不符合条件，被排除，这时记录2就变成rownum = 1了,所以用>1的rownum会变成所有记录都不符合条件
一般用三层select套用，把rownum用别名变成一个实际列字段来处理，当然如果只是要找记录<的，可以直接用，只要不用>什么都无所谓

[tangren]

--一般分页都要排序,假设按id排序
SELECT id, pid, NAME, password
  FROM (SELECT t.*, rownum rn
          FROM (SELECT * FROM person t ORDER BY id) t
         WHERE rownum <= 20)
 WHERE rn >= 10;

[crazypeter2005]

正解，RowNumber

[crazypeter2005]

正解，RowNumber

[vampire1129]

SELECT *
FROM (SELECT ROWNUM AS pagesortid, temp_exppagequery.*
FROM (select * from person) temp_exppagequery)
WHERE pagesortid > 0 AND pagesortid <= 10;

[liqzhangq]

顶一下
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[gll0809]

顶楼上！

[zhangwonderful]

[Quote=引用 4 楼 tangren 的回复:]

SQL code
--一般分页都要排序,假设按id排序
SELECT id, pid, NAME, password
FROM (SELECT t.*, rownum rn
FROM (SELECT * FROM person t ORDER BY id) t
WHERE rownum <= 20)
WHERE rn >= 10;
[/Quote]
支持

[firandiir]

3楼讲的好
顶下

[ORHCLE]

Ding

[sxq129601]

Ding TOO

[Leshami]

向大家学习了

[心中的彩虹]

select id,pid,name,password
(select id,pid,name,password,row_number() over(partition by id order by id) rn
from person) a
where rn between 11 and 20

select * from (select *,rownum rn
from person
where rownum<=20) a
where rn>=11

[心中的彩虹]

select * from
(select a.*,rownum rn from (select * from person) a)
where rn between 11 and 20

[mars199]

正解，RowNumber

[kxning]

看了楼上各位的写法，把过程贴出来大家学习一下。

SQL> select * from emp;

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7369 SMITH      CLERK           7902 17-12月-80            800                    20
      7499 ALLEN      SALESMAN        7698 20-2月 -81           1600        300         30
      7521 WARD       SALESMAN        7698 22-2月 -81           1250        500         30
      7566 JONES      MANAGER         7839 02-4月 -81           2975                    20
      7654 MARTIN     SALESMAN        7698 28-9月 -81           1250       1400         30
      7698 BLAKE      MANAGER         7839 01-5月 -81           2850                    30
      7782 CLARK      MANAGER         7839 09-6月 -81           2450                    10
      7788 SCOTT      ANALYST         7566 19-4月 -87           3000                    20
      7839 KING       PRESIDENT            17-11月-81           5000                    10
      7844 TURNER     SALESMAN        7698 08-9月 -81           1500          0         30
      7876 ADAMS      CLERK           7788 23-5月 -87           1100                    20

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7900 JAMES      CLERK           7698 03-12月-81            950                    30
      7902 FORD       ANALYST         7566 03-12月-81           3000                    20
      7934 MILLER     CLERK           7782 23-1月 -82           1300                    10

已选择14行。

SQL> select * from emp
  2  where rownum<=10
  3  minus
  4  select * from emp
  5  where rownum<=5
  6  /

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7698 BLAKE      MANAGER         7839 01-5月 -81           2850                    30
      7782 CLARK      MANAGER         7839 09-6月 -81           2450                    10
      7788 SCOTT      ANALYST         7566 19-4月 -87           3000                    20
      7839 KING       PRESIDENT            17-11月-81           5000                    10
      7844 TURNER     SALESMAN        7698 08-9月 -81           1500          0         30



SQL> select * from (select t.*,rownum rn from emp t) where rn between 6 and 10;

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO         RN
---------- ---------- --------- ---------- -------------- ---------- ---------- ---------- ----------
      7698 BLAKE      MANAGER         7839 01-5月 -81           2850                    30          6
      7782 CLARK      MANAGER         7839 09-6月 -81           2450                    10          7
      7788 SCOTT      ANALYST         7566 19-4月 -87           3000                    20          8
      7839 KING       PRESIDENT            17-11月-81           5000                    10          9
      7844 TURNER     SALESMAN        7698 08-9月 -81           1500          0         30         10

SQL>

--下面的写法不行
SQL> select * from (select *,rownum rn from emp) where rn between 5 and 10;
select * from (select *,rownum rn from emp) where rn between 5 and 10
                       *
第 1 行出现错误:
ORA-00923: FROM keyword not found where expected