使用 Sql 填补缺失的宿舍

Question

我在 table 中有这样的数据。

Customer_Key	Customer_Name	Component	Region	Quarter	Sales
109	General Motors	Piston	EAST	2019-Q3	7,85,063.37
109	General Motors	Piston	EAST	2020-Q2	24,36,808.92
109	General Motors	Piston	EAST	2020-Q4	19,03,820.10
109	General Motors	Piston	EAST	2021-Q2	62,24,228.01
109	General Motors	Piston	EAST	2022-Q3	44,35,135.25
109	General Motors	Piston	NORTH	2020-Q2	0
109	General Motors	Piston	NORTH	2020-Q3	-1,93,84,747.20
109	General Motors	Piston	NORTH	2021-Q2	-4,78,786.77
109	General Motors	Piston	NORTH	2021-Q3	3,84,93,986.44
109	General Motors	Piston	WEST	2019-Q1	10,29,581.28
109	General Motors	Piston	WEST	2020-Q3	5,51,29,226.88

我想 fill/insert 从 2019-Q1 到 2022-Q4 缺少季度的行，缺少季度的销售额为 0，其余维度保持原样。

例如：West 只有两行 quarter 2019-Q1 AND 2020-Q3。我还需要 2019-Q1 和 2022-Q4 之间的其他 14 行剩余季度。

样本fiddle数据集：Data Set

能否请一些人帮助 sql 代码来实现相同的目标？

Answer 1

试试这个，

CREATE TABLE #Fill_Gaps
    (Customer_Key int, Customer_Name varchar(14), Component varchar(6), Region varchar(5),Quarter varchar(7), Sales varchar(15))
;
    
INSERT INTO #Fill_Gaps
    (Customer_Key, Customer_Name, Component, Region, Quarter, Sales)
VALUES
    (109, 'General Motors', 'Piston', 'EAST', '2019-Q3', '7,85,063.37'),
    (109, 'General Motors', 'Piston', 'EAST', '2020-Q2', '24,36,808.92'),
    (109, 'General Motors', 'Piston', 'EAST', '2020-Q4', '19,03,820.10'),
    (109, 'General Motors', 'Piston', 'EAST', '2021-Q2', '62,24,228.01'),
    (109, 'General Motors', 'Piston', 'EAST', '2022-Q3', '44,35,135.25'),
    (109, 'General Motors', 'Piston', 'NORTH', '2020-Q2', '0'),
    (109, 'General Motors', 'Piston', 'NORTH', '2020-Q3', '-1,93,84,747.20'),
    (109, 'General Motors', 'Piston', 'NORTH', '2021-Q2', '-4,78,786.77'),
    (109, 'General Motors', 'Piston', 'NORTH', '2021-Q3', '3,84,93,986.44'),
    (109, 'General Motors', 'Piston', 'WEST', '2019-Q1', '10,29,581.28'),
    (109, 'General Motors', 'Piston', 'WEST', '2020-Q3', '5,51,29,226.88')
;

CREATE TABLE #Quarters
    (Quarters varchar(7))
;
    
INSERT INTO #Quarters
    (Quarters)
VALUES
    ('2019-Q1'),
    ('2019-Q2'),
    ('2019-Q3'),
    ('2019-Q4'),
    ('2020-Q1'),
    ('2020-Q2'),
    ('2020-Q3'),
    ('2020-Q4'),
    ('2021-Q1'),
    ('2021-Q2'),
    ('2021-Q3'),
    ('2021-Q4'),
    ('2022-Q1'),
    ('2022-Q2'),
    ('2022-Q3'),
    ('2022-Q4')
;

create table #temp (Customer_Key int, Customer_Name varchar(14), Component varchar(6), Region varchar(5),Quarter varchar(7))

--insert into #temp(Customer_Key,Customer_Name, Component, Region,Quarter)
--Select distinct Customer_Key,Customer_Name, Component, Region,Quarters
--from #Fill_Gaps A, #Quarters B  

 ---OR
 insert into #temp(Customer_Key,Region,Quarter)
Select distinct Customer_Key,Region,Quarters
from #Fill_Gaps A, #Quarters B

update t
set Customer_Name=fg.Customer_Name,Component=fg.Component
from  #temp t
inner join #Fill_Gaps fg on fg.Customer_Key=t.Customer_Key

select t.Customer_Key , t.Customer_Name, t.Component , t.Region ,t.Quarter,isnull(fg.Sales,0)Sales 
from #temp t
left join #Fill_Gaps fg on fg.Customer_Key=t.Customer_Key and t.Quarter=fg.Quarter and t.Region=fg.Region

drop table #Fill_Gaps,#Quarters,#temp

使用 Sql 填补缺失的宿舍

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