数据库“行专列”操作---使用row_number()over(partition by 分组字段 [order by 排序字段])

测试样例：

 create table test(rsrp string,rsrq string,tkey string,distan string);

 insert into test values('-90.28','-37','tkey1','');

 insert into test values('-92.35','-40','tkey1','');

 insert into test values('-94.36','-34','tkey2','');

 insert into test values('-93.88','-38','tkey2','');

 select * from test;

 +------------+------------+------------+--------------+--+

 | test.rsrp  | test.rsrq  | test.tkey  | test.distan  |

 +------------+------------+------------+--------------+--+

 | -90.28     | -37        | tkey1      | 10           |

 | -92.35     | -40        | tkey1      | 30           |

 | -94.36     | -34        | tkey2      | 5            |

 | -93.88     | -38        | tkey2      | 19           |

 +------------+------------+------------+--------------+--+

 select rsrp,rsrq,tkey,distan,row_number()over(partition by tkey order by distan asc) rn

 from test

 group by rsrp,rsrq,tkey,distan;

 +---------+-------+--------+---------+-----+--+

 |  rsrp   | rsrq  |  tkey  | distan  | rn  |

 +---------+-------+--------+---------+-----+--+

 | -90.28  | -37   | tkey1  | 10      | 1   |

 | -92.35  | -40   | tkey1  | 30      | 2   |

 | -93.88  | -38   | tkey2  | 19      | 1   |

 | -94.36  | -34   | tkey2  | 5       | 2   |

 +---------+-------+--------+---------+-----+--+

新建测试表：

create table grid_test(

buildingid nvarchar(32),

gridid nvarchar(32),

height int,

gridx nvarchar(32),

gridy nvarchar(32),

eci nvarchar(32),

total_num int

)

测试分组

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci1',123)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci1',2)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci1',19)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci1',50)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci1',78)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci2',98)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci2',22)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci2',19)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci2',87)

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci2',78)

--栅格小区分组排序

select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy,eci order by total_num desc) rn

from grid_test

group by buildingid,gridid,height,gridx,gridy,eci,total_num;

buildingid    gridid    height    gridx    gridy    eci    total_num    rn

building1    gridid1    1    gridid1 x    gridid1 y    eci1    123    1

building1    gridid1    1    gridid1 x    gridid1 y    eci1    78    2

building1    gridid1    1    gridid1 x    gridid1 y    eci1    50    3

building1    gridid1    1    gridid1 x    gridid1 y    eci1    19    4

building1    gridid1    1    gridid1 x    gridid1 y    eci1    2    5

building1    gridid1    1    gridid1 x    gridid1 y    eci2    98    1

building1    gridid1    1    gridid1 x    gridid1 y    eci2    87    2

building1    gridid1    1    gridid1 x    gridid1 y    eci2    78    3

building1    gridid1    1    gridid1 x    gridid1 y    eci2    22    4

building1    gridid1    1    gridid1 x    gridid1 y    eci2    19    5

--栅格分组排序

select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

from grid_test

group by buildingid,gridid,height,gridx,gridy,eci,total_num

buildingid    gridid    height    gridx    gridy    eci    total_num    rn

building1    gridid1    1    gridid1 x    gridid1 y    eci1    123    1

building1    gridid1    1    gridid1 x    gridid1 y    eci2    98    2

building1    gridid1    1    gridid1 x    gridid1 y    eci2    87    3

building1    gridid1    1    gridid1 x    gridid1 y    eci1    78    4

building1    gridid1    1    gridid1 x    gridid1 y    eci2    78    5

building1    gridid1    1    gridid1 x    gridid1 y    eci1    50    6

building1    gridid1    1    gridid1 x    gridid1 y    eci2    22    7

building1    gridid1    1    gridid1 x    gridid1 y    eci1    19    8

building1    gridid1    1    gridid1 x    gridid1 y    eci2    19    9

building1    gridid1    1    gridid1 x    gridid1 y    eci1    2    10

行专列：

truncate table grid_test;

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci10',123);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci11',2);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci12',19);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci13',50);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci14',78);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci21',98);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci22',22);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci23',19);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci24',87);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci25',78);

select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

from grid_test

group by buildingid,gridid,height,gridx,gridy,eci,total_num

buildingid    gridid    height    gridx    gridy    eci    total_num    rn

building1    gridid1    1    gridid1 x    gridid1 y    eci10    123    1

building1    gridid1    1    gridid1 x    gridid1 y    eci14    78    2

building1    gridid1    1    gridid1 x    gridid1 y    eci13    50    3

building1    gridid1    1    gridid1 x    gridid1 y    eci12    19    4

building1    gridid1    1    gridid1 x    gridid1 y    eci11    2    5

building1    gridid2    1    gridid2 x    gridid2 y    eci21    98    1

building1    gridid2    1    gridid2 x    gridid2 y    eci24    87    2

building1    gridid2    1    gridid2 x    gridid2 y    eci25    78    3

building1    gridid2    1    gridid2 x    gridid2 y    eci22    22    4

building1    gridid2    1    gridid2 x    gridid2 y    eci23    19    5

select * from (

select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

from grid_test

group by buildingid,gridid,height,gridx,gridy,eci,total_num

) t10

where rn<=3

buildingid    gridid    height    gridx    gridy    eci    total_num    rn

building1    gridid1    1    gridid1 x    gridid1 y    eci10    123    1

building1    gridid1    1    gridid1 x    gridid1 y    eci14    78    2

building1    gridid1    1    gridid1 x    gridid1 y    eci13    50    3

building1    gridid2    1    gridid2 x    gridid2 y    eci21    98    1

building1    gridid2    1    gridid2 x    gridid2 y    eci24    87    2

building1    gridid2    1    gridid2 x    gridid2 y    eci25    78    3

truncate table grid_test;

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci10',123);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci11',2);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci12',19);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci12',19);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci13',50);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci14',78);

insert into grid_test values('building1','gridid1',1,'gridid1 x','gridid1 y','eci14',78);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci21',98);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci22',22);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci23',19);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci24',87);

insert into grid_test values('building1','gridid2',1,'gridid2 x','gridid2 y','eci25',78);

select  t10.buildingid,t10.gridid,t10.height,t10.gridx,t10.gridy,

t10.cell1,t10.cell1_mrcount,

t11.cell2,t11.cell2_mrcount,

t12.cell3,t12.cell3_mrcount

from

(

    select buildingid,gridid,height,gridx,gridy,eci as cell1,total_num cell1_mrcount from

    (

        select * from

        (

        select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

        from grid_test

        group by buildingid,gridid,height,gridx,gridy,eci,total_num

        ) t10

        where rn<=3

    ) t where rn=1

) t10

inner join

(

    select buildingid,gridid,height,gridx,gridy,eci as cell2,total_num cell2_mrcount  from (

    select * from (

    select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

    from grid_test

    group by buildingid,gridid,height,gridx,gridy,eci,total_num

    ) t10

    where rn<=3

    )  t where rn=2

) t11  on t10.gridid=t11.gridid and t10.height=t11.height

inner join

(

    select buildingid,gridid,height,gridx,gridy,eci as cell3,total_num cell3_mrcount from (

    select * from (

    select buildingid,gridid,height,gridx,gridy,eci,total_num,row_number()over(partition by buildingid,gridid,height,gridx,gridy order by total_num desc) rn

    from grid_test

    group by buildingid,gridid,height,gridx,gridy,eci,total_num

    ) t10

    where rn<=3

    )  t where rn=3

) t12  on t10.gridid=t12.gridid and t10.height=t12.height

buildingid    gridid    height    gridx    gridy       cell1    cell1_mrcount    cell2    cell2_mrcount    cell3    cell3_mrcount

building1    gridid1    1    gridid1 x    gridid1 y    eci10    123              eci14    78               eci13    50

building1    gridid2    1    gridid2 x    gridid2 y    eci21    98               eci24    87               eci25    78

数据库“行专列”操作---使用row_number()over(partition by 分组字段 [order by 排序字段])的更多相关文章

hive：数据库“行专列”操作---使用collect_set/collect_list/collect_all & row_number()over(partition by 分组字段 [order by 排序字段])
方案一:请参考<数据库“行专列”操作---使用row_number()over(partition by 分组字段 [order by 排序字段])>,该方案是sqlserver,orac ...
去重 ROW_NUMBER() OVER(PARTITION BY 分组字段 ORDER BY 排序字段) RN
关键字 ROW_NUMBER() OVER(PARTITION BY 分组字段 ORDER BY 排序字段) RN 按照分组字段进行排序并标编号 ROW_NUMBER() OVER(PARTITIO ...
【SQL】ROW_NUMBER() OVER(partition by 分组列 order by 排序列)用法详解+经典实例
#用法说明 select row_number() over(partition by A order by B ) as rowIndex from table A :为分组字段 B:为分组后的排序 ...
oracle ROW_NUMBER() OVER(PARTITION BY '分组' ORDER BY '排序' DESC) 用法
转载:https://blog.csdn.net/dbagaoshou/article/details/51330829 SELECT * FROM ( SELECT ROW_NUMBER() OVE ...
SELECT a.loginname,a.deviceid,a.time,Row_Number() OVER (partition by a.loginname ORDER BY a.deviceid desc,a.time asc) rank
现在做一个反欺诈内容要用到笛卡尔积,用来分析用户一个手机号,对应的多个设备,每个更换设备的时间,这里取的时间是系统收集时间,用来代表更换的时间, 所以要先对设备换的时间作排序,然后进行rank,最后求 ...
row_number() over partition by 分组聚合
分组聚合,就是先分组再排序,可以的话顺手标个排名:如果不想分组也可以排名:如果不想分组同时再去重排名也可以 ROW_NUMBER() OVER( [PARTITION BY column_1, col ...
sql 分组取最新的数据sqlserver巧用row_number和partition by分组取top数据
SQL Server 2005后之后,引入了row_number()函数,row_number()函数的分组排序功能使这种操作变得非常简单分组取TOP数据是T-SQL中的常用查询, 如学生信息管理系 ...
row_number和partition by分组取top数据
分组取TOP数据是T-SQL中的常用查询, 如学生信息管理系统中取出每个学科前3名的学生.这种查询在SQL Server 2005之前,写起来很繁琐,需要用到临时表关联查询才能取到.SQL Serve ...
MYSQL-实现分组排序对比 ORACLE 和SQLserver用 row_number() over(partition by ) 分组排序功能
以下是个人笔记: 本文是为了理解 row_number() over(partition by ) 和实现各种数据库的分组排序功能 select ROW_NUMBER()over( partitio ...

随机推荐

关于html文档的规范
1. <!DOCTYPE html> 告诉浏览器该文档使用哪种html或xhtml的规范 2. 元数据中的X-UA-Compatible <meta http-equiv=" ...
Lucene-02:搜索初步
承接上一篇文章. package com.amazing; import java.io.File; import java.io.IOException; import org.apache.luc ...
什么是DOM，DOM level 1\2\3 的区别是什么
DOM 文档对象模型(Document Object Model,简称DOM),是W3C组织推荐的处理可扩展标志语言的标准编程接口.Document Object Model的历史可以追溯至1990年 ...
ListIterator
1,ListIterator与Iterator Iterator的功能:next(),hasNext(),remove() 功能太少,因此出现了ListIterator,他的功能要比Iterator多 ...
MYSQL数据库学习七视图的操作
7.1 视图视图使程序员只关心感兴趣的某些特定数据和他们所负责的特定任务.提高了数据库中数据的安全性. 视图的特点如下: 视图的列可以来自不同的表,是表的抽象和在逻辑意义上建立的新关系. 视图是由基 ...
mysql数据库索引优化与实践（一）
前言 mysql数据库是现在应用最广泛的数据库系统.与数据库打交道是每个Java程序员日常工作之一,索引优化是必备的技能之一. 为什么要了解索引真实案例案例一:大学有段时间学习爬虫,爬取了知乎30 ...
openjudge(二)
强制类型转换的作用:按照规范输出.
node.js与比特币（typescript实现）
BTC中的utxo模型 BTC中引入了许多创新的概念与技术,区块链.PoW共识.RSA加密.萌芽阶段的智能合约等名词是经常被圈内人所提及,诚然这些创新的实现使得BTC变成了一种有可靠性和安全性保证的封 ...
云计算之路-阿里云上-容器难容：容器服务故障以及自建 docker swarm 集群故障
3月21日,由于使用阿里云服务器自建 docker swarm 集群的不稳定,我们将自建 docker swarm 集群上的所有应用切换阿里云容器服务 swarm 版(非swarm mode). 3月 ...
lambda及参数绑定
一.介绍对于STL中的算法,我们都可以传递任何类别的可调用对象.对于一个对象或一个表达式,如果可以对其使用调用运算符,则称它为可调用的.即,如果e是一个可调用的表达式,则我们可以编写代码e(ar ...

数据库“行专列”操作---使用row_number()over(partition by 分组字段 [order by 排序字段])

数据库“行专列”操作---使用row_number()over(partition by 分组字段 [order by 排序字段])的更多相关文章

随机推荐

热门专题