Oracle并列排名显示
作者:互联网
转载地址:https://blog.csdn.net/WXB52112181314/article/details/80838567
第一种:dense_rank() over (order by 字段 升序或降序) as 别名 from 表名;
使用别名方便之后过滤条件使用;
排名的时候并列算同一个人,如,1,2,2,3
SQL> select ename,job,sal,dense_rank() over(order by sal desc) as rank from emp;
ENAME JOB SAL RANK
KING PRESIDENT 5000 1
FORD ANALYST 3000 2
SCOTT ANALYST 3000 2
JONES MANAGER 2975 3
BLAKE MANAGER 2850 4
CLARK MANAGER 2450 5
ALLEN SALESMAN 1600 6
TURNER SALESMAN 1500 7
ADAMS CLERK 1400 8
SMITH CLERK 1400 8
MILLER CLERK 1300 9
WARD SALESMAN 1250 10
MARTIN SALESMAN 1250 10
JAMES CLERK 950 11
已选择14行。
比如限制条件为 排名第二的员工,并列的都显示出来:
SQL> select * from (select ename,job,sal,dense_rank() over(order by sal desc) as rank from emp) where rank =2;
ENAME JOB SAL RANK
SCOTT ANALYST 3000 2
FORD ANALYST 3000 2
第二种:rank() over (order by 字段名 升序或者降序) as 别名 from 表名;
排名的时候,并列多少个人,序号就算多少个,如:1,2,2,4
SQL> select ename,job,sal,rank() over(order by sal desc) as rank from emp;
ENAME JOB SAL RANK
KING PRESIDENT 5000 1
FORD ANALYST 3000 2
SCOTT ANALYST 3000 2
JONES MANAGER 2975 4
BLAKE MANAGER 2850 5
CLARK MANAGER 2450 6
ALLEN SALESMAN 1600 7
TURNER SALESMAN 1500 8
ADAMS CLERK 1400 9
SMITH CLERK 1400 9
MILLER CLERK 1300 11
WARD SALESMAN 1250 12
MARTIN SALESMAN 1250 12
JAMES CLERK 950 14
已选择14行。
第三种:row_number() over (order by 字段名 升序或降序) as 别名 from 表名;
这种就是不分并列,直接按序号来排名,如:1,2,3,4
SQL> select ename,job,sal,row_number() over(order by sal desc) as rank from emp;
ENAME JOB SAL RANK
KING PRESIDENT 5000 1
FORD ANALYST 3000 2
SCOTT ANALYST 3000 3
JONES MANAGER 2975 4
BLAKE MANAGER 2850 5
CLARK MANAGER 2450 6
ALLEN SALESMAN 1600 7
TURNER SALESMAN 1500 8
ADAMS CLERK 1400 9
SMITH CLERK 1400 10
MILLER CLERK 1300 11
WARD SALESMAN 1250 12
MARTIN SALESMAN 1250 13
JAMES CLERK 950 14
已选择14行。
作者:奥利奥小兵
来源:CSDN
原文:https://blog.csdn.net/WXB52112181314/article/details/80838567
版权声明:本文为博主原创文章,转载请附上博文链接!
标签:CLERK,rank,MANAGER,3000,并列,Oracle,排名,SALESMAN,ANALYST 来源: https://blog.csdn.net/lightningmn/article/details/97275341