Question

请帮帮我，我想问一下如何计算群组使用SQL服务器语法。样本是这样的：

Table : Leasing
Field : LeasingName
Data :  - PANIN
        - CLIPAN
        - MEGA
        etc

Table : Insurance    
Field : InsuranceName
Data  : - BUANA
        - MUGI
        - BESS
        etc      

Table Customer
NoCust      LeasingName        InsuranceName    --> Field Name
00001       PANIN   
00002       PANIN              BESS   
00003       MEGA               BUANA
00004       CLIPAN             MUGI

我想要的结果是：

我想按组租赁名称和保险名称选择并计算所有数据表：保险和租赁

所以结果可能是这样的：

| PANIN  |  CLIPAN  | MEGA  |  --> All data from table Leasing 
  2         1         1

| BUANA  |  MUGI    | BESS  | --> All Data from table Insurance
  1         1         1

所有结果计数都来自表客户的计数请帮我。

Answer 1

Use PIVOT Table to get your result :

CREATE TABLE #CustomerTable (NoCust INT , LeasingName VARCHAR(100) ,     
InsuranceName VARCHAR(100))

INSERT INTO #CustomerTable (NoCust , LeasingName  , InsuranceName ) 
SELECT 00001,'PANIN','' UNION ALL
SELECT 00002,'PANIN','BESS' UNION ALL  
SELECT 00003,'MEGA','BUANA' UNION ALL
SELECT 00004,'CLIPAN','MUGI'


 SELECT CLIPAN , MEGA , PANIN
 FROM 
 (
    SELECT LeasingName , COUNT(*) Cnt
    FROM #CustomerTable
    GROUP BY LeasingName
 ) A
 PIVOT 
 (
      MAX(Cnt) FOR LeasingName IN ([CLIPAN],[MEGA],[PANIN])
 )pvt


 SELECT [BESS],[BUANA],[MUGI]
 FROM 
 (
    SELECT InsuranceName , COUNT(*) Cnt
    FROM #CustomerTable
    GROUP BY InsuranceName
 ) A
 PIVOT 
 (
     MAX(Cnt) FOR InsuranceName IN ([BESS],[BUANA],[MUGI])
 )pvt

Demo

Answer 2

select
    count( * ) RecordsPerGroup,
    COUNT( * ) OVER () AS TotalRecords
from temptable
group by column_1, column_2, column_3, column_4

使用Group计算SQL

2 个答案: