首页 > 解决方案 > 首先按重复最多的记录排序

问题描述

create table tbl_dup
(
    name varchar(100)
);

insert into tbl_dup values('Arsel Rous'),('Oram Rock'),('Oram Rock'),('Brown Twor'),
                          ('John Mak'),('Mak Dee'),('Smith Will'),('Mak Dee'),
                          ('John Mak'),('Oram Rock'),('John Mak'),('Oram Rock');

查询:我正在寻找命令重复记录应显示在结果集中的第一级。

select * 
from
(
select name,row_number() over(partition by name order by name) rn 
from tbl_dup
) a
order by name,rn;

得到:

name        rn
--------------
Arsel Rous  1
Brown Twor  1
John Mak    1
John Mak    2
John Mak    3
Mak Dee     1
Mak Dee     2
Oram Rock   1
Oram Rock   2
Oram Rock   3
Oram Rock   4
Smith Will  1

预期结果:

name        rn
---------------
Oram Rock   1
Oram Rock   2
Oram Rock   3
Oram Rock   4
John Mak    1
John Mak    2
John Mak    3
Mak Dee     1
Mak Dee     2
Arsel Rous  1
Brown Twor  1

标签: sql-serversql-server-2008-r2

解决方案


尝试在子句COUNT中用作分析函数:ORDER BY

SELECT name, ROW_NUMBER() OVER (PARTITION by name ORDER BY name) rn
FROM tbl_dup
ORDER BY COUNT(*) OVER (PARTITION BY name) DESC, rn;

在此处输入图像描述

演示


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