can anyone please help to create a query for this, I tried a lot but did not succeed
create a SQL query selecting all employees, invoice totals for the customers they handle.
Assuming that a single invoice is calculated by UnitPrice * Quantity, the following query should work:
select EmployeeId, sum(invoice) InvoicesTotal
from
(select EmployeeId, SupportRepId, CustomerId
from employees e
left join customers c
on e.EmployeeId = c.SupportRepId) ec
left join
(select CustomerId, sum(UnitPrice * Quantity) invoice
from invoices i
join
invoice_items ii
on i.InvoiceId = ii.InvoiceId
group by CustomerId) ci
on
ec.CustomerId = ci.CustomerId
group by EmployeeId
Related
I am querying a SQL Server database using a stored procedure.
My database tables include:
Customers
SalesOrders - Linked to the customers with an id
SalesOrderLines - Linked to the SalesOrders with an id
SalesOrderReleases - Linked to the SalesOrderLines with an id, stores the quantity on the order line that has been released and ready to manufacture, the SalesOrderLine quantity can be all on one release or split up on multiple
FinishedGoods - linked to the SalesOrderLines with an id, stores the quantity of the SalesOrderLine where manufacturing is complete, the SalesOrderLine quantity can be all on one FinishedGood entry or split up on multiple
I need to retrieve all the customers that have SalesOrderLines with SalesOrderReleases and FinishedGoods where the total quantity finished is less than the total quantity released
I have tried this SQL code but Customers appear repeatedly in the results
SELECT
Customer.ID, Customer.Name
FROM
Customer
INNER JOIN
SalesOrder ON Customer.ID = SalesOrder.CustomerID
INNER JOIN
SalesOrderLine ON SalesOrder.ID = SalesOrderLine.SalesOrderID
INNER JOIN
SalesOrderRelease ON SalesOrderLine.ID = SalesOrderRelease.SalesOrderLineID
INNER JOIN
FinishedGood ON SalesOrderLine.ID = FinishedGood.SalesOrderLineID AND FinishedGood.Quantity < SalesOrderRelease.Quantity
I am looking for a SQL code snippet that will query multiple tables the way I have described.
try this code:
SELECT Customer.ID, Customer.Name FROM Customer
INNER JOIN SalesOrder ON Customer.ID = Order.CustomerID
INNER JOIN SalesOrderLine ON Order.ID = OrderLine.OrderID
INNER JOIN
(SELECT OrderID, OrderLineID, SUM (Quantity) AS SRQuantity FROM
SalesOrderRelease GROUP BY OrderID, OrderLineID) AS SRQ
ON SRQ.OrderID = SalesOrderLine.OrderID
INNER JOIN
(SELECT OrderLineID, SUM (Quantity) AS FGQuantity FROM
FinishedGoods GROUP BY OrderLineID) AS FGQ
ON SRQ.OrderLineID = FGQ.OrderLineID
WHERE FGQ.FgQuantity < SRQ.SRQuantity
Credits to Sergey for his answer, I was able to use the sample code he provided with several slight modifications:
SELECT Customer.ID, Customer.Name FROM Customer
INNER JOIN SalesOrder ON Customer.ID = SalesOrder.CustomerID
INNER JOIN SalesOrderLine ON SalesOrder.ID = SalesOrderLine.SalesOrderID
INNER JOIN
(SELECT SalesOrderID, SalesOrderLineID, SUM (Quantity) AS SRQuantity FROM
SalesOrderRelease GROUP BY SalesOrderID, SalesOrderLineID) AS SRQ
ON SRQ.SalesOrderLineID = SalesOrderLine.SalesOrderID
LEFT JOIN
(SELECT SalesOrderLineID, SUM (Quantity) AS FGQuantity FROM
FinishedGood GROUP BY SalesOrderLineID) AS FGQ
ON SRQ.SalesOrderLineID = FGQ.SalesOrderLineID
WHERE ISNULL(FGQ.FgQuantity, 0) < SRQ.SRQuantity
The last join needed to be a Left Join
When comparing the FgQuantity and the SRQuantity in the last line, I needed to have it check for NULL values
With these modifications everythings works perfectly!
I have two tables, Customer, and Invoices,I have to list all the customers with their remaining credit. I'm trying to subtract the sum of the Invoice Amount column from the CreditLimit column to give me the remaining credit?
This is my query so far
DECLARE #CreditRemaining INT
SELECT
#CreditRemaining = (c.CreditLimit - SUM(i.Amount))
FROM
Customer c
INNER JOIN
Invoices i on
c.ID = i.customerId
Use a derived table for the invoice amount SUM(), then JOIN back to Customer:
DECLARE #CreditRemaining INT
SELECT #CreditRemaining = (c.CreditLimit - TotalSpent)
FROM Customer c
INNER JOIN (SELECT SUM(Amount) TotalSpent, CustomerID
FROM Invoices
GROUP BY CustomerID) i ON i.CustomerID = c.ID
As others mentioned, this is assuming you are limiting your selection to one customer.
For all customers, just use a select:
SELECT C.Name, (c.CreditLimit - TotalSpent) CreditRemaining
FROM Customer c
INNER JOIN (SELECT SUM(Amount) TotalSpent, CustomerID
FROM Invoices
GROUP BY CustomerID) i ON i.CustomerID = c.ID
GROUP BY C.Name
I have two tables, Customer with columns CustomerID, FirstName, Address and Purchases with columns PurchaseID, Qty, CustomersID.
I want to create a query that will display FirstName(s) that have bought more than two products, product quantity is represented by Qty.
I can't seem to figure this out - I've just started with T-SQL
You could sum the purchases and use a having clause to filter those you're interested in. You can then use the in operator to query only the customer names that fit these IDs:
SELECT FirstName
FROM Customer
WHERE CustomerID IN (SELECT CustomerID
FROM Purchases
GROUP BY CustomerID
HAVING SUM(Qty) > 2)
Please try this, it should work for you, according to your question.
Select MIN(C.FirstName) FirstName from Customer C INNER JOIN Purchases P ON C.CustomerID=P.CustomersID Group by P.CustomersID Having SUM(P.Qty) >2
Please try this:
select c.FirstName,p.Qty
from Customer as c
join Purchase as p
on c.CustomerID = p.CustomerID
where CustomerID in (select CustomerID from Purchases group by CustomerID having count(CustomerID)>2);
SELECT
c.FirstName
FROM
Customer c
INNER JOIN Purchases p
ON c.CustomerId = p.CustomerId
GROUP BY
c.FirstName
HAVING
SUM(p.Qty) > 2
While the IN suggestions would work they are kind of overkill and more than likely less performant than a straight up join with aggregation. The trick is the HAVING Clause by using it you can limit your result to the names you want. Here is a link to learn more about IN vs. Exists vs JOIN (NOT IN vs NOT EXISTS)
There are dozens of ways of doing this and to introduce you to Window Functions and common table expressions which are way over kill for this simplified example but are invaluable in your toolset as your queries continue to get more complex:
;WITH cte AS (
SELECT DISTINCT
c.FirstName
,SUM(p.Qty) OVER (PARTITION BY c.CustomerId) as SumOfQty
FROM
Customer c
INNER JOIN Purchases p
ON c.CustomerId = p.CustomerId
)
SELECT *
FROM
cte
WHERE
SumOfQty > 2
This is a query based on the Northwind Database in MS SQL Server 2005.
First I have to get the average of the UnitPrice from OrderDetails table, and group it by ProductID for that particular column alone and alias it as AveragePrice.
Then I need to find the maximum(AveragePrice) which is nothing but the max of previous column, how can I do it??? This is a kind of very tricky for me its taking me ages to think on it.
select
O.CustomerID,
E.EmployeeID,
E.FirstName+space(1)+E.LastName FullName,
OD.OrderID,
OD.ProductID,
(select avg(DO.UnitPrice) from OrderDetails
DO where OD.ProductID = DO.ProductID
group by DO.ProductID) AveragePrice ,
from OrderDetails OD
join Orders O
on OD.OrderID = O.OrderID
join Customers C
on C.CustomerID = O.CustomerID
join Employees E
on E.EmployeeID = O.EmployeeID
This is not a Homework question, am learning SQL, but am really stuck at this point, please help me.
It's 2 steps: "the ungrouped maximum of the grouped averages"
You can expand this as needed which shows how to apply an aggregate on top of an aggregate
SELECT
MAX(AveragePrice) AS MaxAveragePrice
FROM
(
select
avg(UnitPrice) AS AveragePrice, ProductID
from
OrderDetails
group by
ProductID
) foo
Or with CTE
;WITH AvgStuff AS
(
select
avg(UnitPrice) AS AveragePrice
from
OrderDetails
group by
ProductID
)
SELECT
MAX(AveragePrice) AS MaxAveragePrice
FROM
AvgStuff
I want to make a query to list cats that took longer than average cats to sell?
I have five tables:
Animal, Sale, AnimalOrderItem, AnimalOrder, and SaleAnimal
Animal table: AnimalID, Name, Category
(cat, dog, fish)
SaleAnimal table: SaleID, AnimalID,
SalePrice
Sale table: SaleID, date, employeeID,
CustomerID
AnimalOrderItem table: OrderID,
AnimalID, cost
AnimalOrder: OrderID, OrderDate,
ReceivingDate,
SupplierID, ShippingCost, EmployeeID
There is other tables I don’t think they have an effect on the query.
I thought of the following ... make a query to calculate days to sell for all ex.:
[SaleDate]-[ReceiveDate] AS DaysToSell
Have the INNER JOIN built:
Sale INNER JOIN ((AnimalOrder INNER JOIN (Animal INNER JOIN AnimalOrderItem
ON Animal.AnimalID = AnimalOrderItem.AnimalID) ON AnimalOrder.
OrderID = AnimalOrderItem.OrderID) INNER JOIN SaleAnimal ON Animal.
AnimalID = SaleAnimal.AnimalID) ON Sale.SaleID = SaleAnimal.SaleID
Create another query based on the above query
SELECT AnimalID, Name, Category, DaysToSell
WHERE Category="Cat" AND DaysToSell>
(SELECT Avg(DaysToSell)
FROM the earlier query
WHERE Category="Cat"
ORDER BY DaysToSell DESC;
After running the query it I got error saying
ORA-00921: unexpected end of SQL
command
Any suggestions! please
Queries can be combined with a subquery. For example,
select *
from (
select *
from mytable
) subquery
Applying this pattern to your problem seems fairly straightforward.
I don't see the closed bracket that matches with the select avg
Ok, I've come up with this:
SELECT AnimalID, Name, Category,
[SaleDate]-[ReceiveDate] AS DaysToSell
FROM Sale INNER JOIN ((AnimalOrder INNER JOIN (Animal INNER JOIN AnimalOrderItem ON Animal.AnimalID = AnimalOrderItem.AnimalID) ON AnimalOrder.OrderID = AnimalOrderItem.OrderID)
INNER JOIN SaleAnimal ON Animal.AnimalID = SaleAnimal.AnimalID) ON Sale.SaleID = SaleAnimal.SaleID
WHERE Category = "Cat"
AND ([SaleDate]-[ReceiveDate]) > (SELECT AVG([SaleDate]-[ReceiveDate])
FROM Sale INNER JOIN ((AnimalOrder INNER JOIN (Animal INNER JOIN AnimalOrderItem ON Animal.AnimalID = AnimalOrderItem.AnimalID) ON AnimalOrder.OrderID = AnimalOrderItem.OrderID)
INNER JOIN SaleAnimal ON Animal.AnimalID =SaleAnimal.AnimalID) ON Sale.SaleID = SaleAnimal.SaleID
WHERE Category = "Cat")
ORDER BY ([SaleDate]-[ReceiveDate]) DESC;