Sql 使用一个表创建两个表
对于我上面的示例,该数据将包含:Sql 使用一个表创建两个表,sql,sql-server,database,Sql,Sql Server,Database,对于我上面的示例,该数据将包含: CREATE TABLE ItemsOfStores ( Item int, Store int ); 我需要SQL将结果插入到两个表中: INSERT INTO ItemsOfStores (Item,Store) VALUES (1,1),(1,3),(4,1),(4,3),(5,1),(5,3),(2,1), (2,2),(2,4),(3,1),(3,2),(3,4); 在我上面的例子中,项目1、4和5在商店1和3,那么将
CREATE TABLE ItemsOfStores ( Item int, Store int );
我需要SQL将结果插入到两个表中:
INSERT INTO ItemsOfStores (Item,Store)
VALUES (1,1),(1,3),(4,1),(4,3),(5,1),(5,3),(2,1),
(2,2),(2,4),(3,1),(3,2),(3,4);
在我上面的例子中,项目1、4和5在商店1和3,那么将有一组
由存储1和存储3组成的存储,我将其称为组1。第一组拥有1号和3号门店,所以将(1,1)、(1,3)放入门店组,
第1,4,5项都在这一组中,所以(1,1),(1,4),(1,5)将被分为几组
同样在我的例子中,项目2和3在商店1、2和4,那么会有第二组
在由存储1、2和4组成的存储中,我将其称为组2。所以(2,1),(2,2),(2,4)将进入StoreGroup,而(2,2),(2,3)将进入ItemsOfGroup
因此,这个小示例的最终结果将填充存储组
与(1,1)、(1,3)、(2,1)、(2,2)、(2,4)连用,
和具有(1,1)、(1,4)、(1,5)、(2,2)、(2,3)的项目组
我想你想要这样的东西
CREATE TABLE StoreGroups ( GroupId int, Store int )
CREATE TABLE ItemsOfGroups ( GroupId int, Item int )
返回:
CREATE TABLE ItemsOfStores ( Item int, Store int );
INSERT INTO ItemsOfStores (Item,Store)
VALUES (1,1),(1,3),(4,1),(4,3),(5,1),(5,3),(2,1),
(2,2),(2,4),(3,1),(3,2),(3,4);
CREATE TABLE StoreGroups ( GroupId int, Store int );
CREATE TABLE ItemsOfGroups ( GroupId int, Item int );
Insert into StoreGroups
SELECT z.GroupID, value
FROM (
Select ROW_NUMBER() OVER(ORDER BY x.Store ASC)as GroupID, x.Store , x.Item
from
(
select
T3.Store,
stuff((SELECT ', ' + cast(Item as varchar(10))
FROM (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
)t4
where t4.Store = t3.Store
order by Item
FOR XML PATH('')),1,1,'')
as Item
from (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
) t3
group by T3.Store
) x
)z
CROSS APPLY STRING_SPLIT(z.Store, ',');
Select * from StoreGroups
Insert into ItemsOfGroups
-- Use String Split (SQL2016+) function to split merged colums back into seperate values with their related GroupID
SELECT z.GroupID, value
FROM (-- Add GroupID which is related to both merged Item rows and merged store rows
Select ROW_NUMBER() OVER(ORDER BY x.Store ASC)as GroupID, x.Store , x.Item
from
( -- Merge Item values into one row (grouped by Grouped result of Store)
select Store,
stuff((SELECT ', ' + cast(Item as varchar(10))
FROM (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
)t4
where t4.Store = t3.Store
order by Item
FOR XML PATH('')),1,1,'') as Item
from ( -- Merge Store values into one row (grouped by Item)
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
) t3
group by T3.Store
) x
)z
CROSS APPLY STRING_SPLIT(z.Item, ',');
Select * from ItemsOfGroups
同样的逻辑:
GroupId Store
1 1
1 2
1 4
2 1
2 3
返回:
CREATE TABLE ItemsOfStores ( Item int, Store int );
INSERT INTO ItemsOfStores (Item,Store)
VALUES (1,1),(1,3),(4,1),(4,3),(5,1),(5,3),(2,1),
(2,2),(2,4),(3,1),(3,2),(3,4);
CREATE TABLE StoreGroups ( GroupId int, Store int );
CREATE TABLE ItemsOfGroups ( GroupId int, Item int );
Insert into StoreGroups
SELECT z.GroupID, value
FROM (
Select ROW_NUMBER() OVER(ORDER BY x.Store ASC)as GroupID, x.Store , x.Item
from
(
select
T3.Store,
stuff((SELECT ', ' + cast(Item as varchar(10))
FROM (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
)t4
where t4.Store = t3.Store
order by Item
FOR XML PATH('')),1,1,'')
as Item
from (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
) t3
group by T3.Store
) x
)z
CROSS APPLY STRING_SPLIT(z.Store, ',');
Select * from StoreGroups
Insert into ItemsOfGroups
-- Use String Split (SQL2016+) function to split merged colums back into seperate values with their related GroupID
SELECT z.GroupID, value
FROM (-- Add GroupID which is related to both merged Item rows and merged store rows
Select ROW_NUMBER() OVER(ORDER BY x.Store ASC)as GroupID, x.Store , x.Item
from
( -- Merge Item values into one row (grouped by Grouped result of Store)
select Store,
stuff((SELECT ', ' + cast(Item as varchar(10))
FROM (
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
)t4
where t4.Store = t3.Store
order by Item
FOR XML PATH('')),1,1,'') as Item
from ( -- Merge Store values into one row (grouped by Item)
select Item,
stuff((SELECT ', ' + cast(Store as varchar(10))
FROM ItemsOfStores t2
where t2.Item = t1.Item
order by Store
FOR XML PATH('')),1,1,'') as Store
from ItemsOfStores t1
group by Item
) t3
group by T3.Store
) x
)z
CROSS APPLY STRING_SPLIT(z.Item, ',');
Select * from ItemsOfGroups
请将你的问题格式化,使其可读。如何将门店与组id关联?如何知道哪些项目/门店应属于组