I am a user working in inventory management attempting to return information regarding product name, location, and its availability at the location from the adventure works 2017 database. While trying to run the query, I am getting an error message that states I have too many expressions in my subquery list and that I can only do that if I start the subquery with 'Exists'. I suppose I do not understand what I am doing wrong, maybe someone could explain how 'Exists' works? Is there a way I can rewrite this so I can return both expressions in the subquery? I will include the syntax and error message below.
SELECT Production.Product.Name
,(SELECT Production.Location.Name
,Production.Location.Availability
FROM Production.Location
WHERE Production.Location.LocationID = Production.ProductInventory.LocationID)
FROM Production.Product
INNER JOIN Production.ProductInventory
ON Production.Product.ProductID = Production.ProductInventory.ProductID;
You don't need a subquery here this appears to be just an outer join:
select p.Name, l.Name Location, l.Availability
from Production.Product p
join Production.ProductInventory i
left join Production.Location l on l.LocationID = i.LocationID
on p.ProductID = i.ProductID;
Note how tidier the query is by using table aliases.
Related
Having trouble with my sql query. Not an SQL expert by any means.
SELECT
transactions.*,
categories.*,
GROUP_CONCAT(tags.tagName) as concatTags
FROM transactions
INNER JOIN categories
ON transactions.category = categories.categoryId
LEFT JOIN TransactionTagRelation AS ttr
ON transactions.transactionId = ttr.transactionId
LEFT JOIN tags
ON tags.tagId = ttr.tagId;
(There's also a where and group by, but didn't think it was relevant to the question).
I'm trying to get:
transactionId1, ...otherStuff..., "tagId1,tagId2,tagId3"
transactionId2, ...otherStuff..., "tagId1,tagId3"
What I have now seems to merge the tags into one transaction or something. I tried adding a GROUP BY transactionID at the end, but it gives a syntax error for some reason. I have a feeling my joins are incorrect, but I wasn't able to get anything better.
Do something like this:
SELECT t.*, c.*,
(SELECT GROUP_CONCAT(tg.tagName)
FROM TransactionTagRelation ttr JOIN
Tags tg
ON tg.tagId = ttr.tagId
WHERE t.transactionId = ttr.transactionId
) as concatTags
FROM transactions t JOIN
categories c
ON t.category = c.categoryId;
This eliminates the GROUP BY in the outer query and allows you to use t.* and c.* in the SELECT.
Can anyone who knows SQL, specifically the flavor used in Microsoft Access 2013, tell me what I'm doing wrong here?
SELECT custid, custname, ordno, itemno, itemname
FROM cust
INNER JOIN order
ON cust.custid = order.custid
INNER JOIN orderitems
ON order.ordno = orderitems.ordno
INNER JOIN inv
ON orderitems.itemno = inv.itemno;
I've already read other, similar questions, and tried the methods they used in their solutions, but I'm getting a "Syntax error in FROM clause.", almost no matter what I try.
* * *
SOLUTION: Thanks for the replies! In addition to adding square brackets around "order" and using TableName.ColumnName syntax in SELECT, I had to use parentheses for my multiple INNER JOINs. Here is the fixed code:
SELECT cust.custid, cust.custname, [order].ordno, orderitems.itemno, inv.itemname
FROM ((cust
INNER JOIN [order]
ON cust.custid = [order].custid)
INNER JOIN orderitems
ON [order].ordno = orderitems.ordno)
INNER JOIN inv
ON orderitems.itemno = inv.itemno;
SELECT cust.custid --<-- Use two part name here
,cust.custname
,[order].ordno
,orderitems.itemno --<-- Only guessing here use the correct table name
,inv.itemname --<-- Only guessing here use the correct table name
FROM cust
INNER JOIN [order]
ON cust.custid = [order].custid --<-- used square brackets [] around ORDER as it is
INNER JOIN orderitems -- a key word.
ON [order].ordno = orderitems.ordno
INNER JOIN inv
ON orderitems.itemno = inv.itemno;
In your Select Statament you need to use Two Part name i.e TableName.ColumnName since these column can exist in more than one Tables in your FROM clause you need to tell sql server that columns in your select coming from which table in your from clause.
SELECT * FROM Products_Joined, Products
WHERE p.ProductManufacturer = 'Sony'
ORDER BY p.ProductCode
I keep getting the error The multi part identifier p.ProductManufacturer could not be bound
I tried:
Setting the Order By
Adding the PRODUCTS table to the FROM
Is there something I'm missing?
You should use:
SELECT p.*, pj.*
FROM dbo.Products p
INNER JOIN dbo.ProductsJoined pj ON ..... <== add your missing JOIN condition here
WHERE p.ProductManufacturer = 'Sony'
ORDER BY p.ProductCode
First of all: never use SELECT * in your production code.
Secondly: use the proper ANSI JOIN syntax (INNER JOIN..) to clearly show what you're joining, and on what JOIN condition (which is missing in your case - you're producing a cartesian product here.....)
Third: if you use table aliases like p. - you need to define them, too!
You have no p object. You need to alias one of your tables.
SELECT * FROM Products_Joined, Products AS p
WHERE p.ProductManufacturer = 'Sony'
ORDER BY p.ProductCode
That will fix your immediate problem, however you should have a JOIN on your tables or else you are doing a CROSS JOIN, which is usually not preferable. An example of what it would look like is below.
SELECT *
FROM Products_Joined
JOIN Products AS p
ON Products_Joined.ProductsID = p.ProductsID
--This join is a guess on what the common column is between these two tables
--Change as necessary
WHERE p.ProductManufacturer = 'Sony'
ORDER BY p.ProductCode
UPDATE BASED ON YOUR COMMENT
If you received the error even with a Products.ProductManufacturer, then you are probably missing the ProductManufacturer column in the Products table. I would check your schema and verify the column exists.
What is wrong with my sql statement, it says that the problem is near the FULL JOIN, but I'm stumped:
SELECT `o`.`name` AS `offername`, `m`.`name` AS `merchantName`
FROM `offer` AS `o`
FULL JOIN `offerorder` AS `of` ON of.offerId = o.id
INNER JOIN `merchant` AS `m` ON o.merchantId = m.id
GROUP BY `of`.`merchantId`
Please be gentle, as I am not a sql fundi
MySQL doesn't offer full join, you can either use
a pair of LEFT+RIGHT and UNION; or
use a triplet of LEFT, RIGHT and INNER and UNION ALL
The query is also very wrong, because you have a GROUP BY but your SELECT columns are not aggregates.
After you convert this properly to LEFT + RIGHT + UNION, you still have the issue of getting an offername and merchantname from any random record per each distinct of.merchantid, and not even necessarily from the same record.
Because you have an INNER JOIN condition against o.merchant, the FULL JOIN is not necessary since "offerorder" records with no match in "offer" will fail the INNER JOIN. That turns it into a LEFT JOIN (optional). Because you are grouping on of.merchantid, any missing offerorder records will be grouped together under "NULL" as merchantid.
This is a query that will work, for each merchantid, it will show just one offer that the merchant made (the one with the first name when sorted in lexicographical order).
SELECT MIN(o.name) AS offername, m.name AS merchantName
FROM offer AS o
LEFT JOIN offerorder AS `of` ON `of`.offerId = o.id
INNER JOIN merchant AS m ON o.merchantId = m.id
GROUP BY `of`.merchantId, m.name
Note: The join o.merchantid = m.id is highly suspect. Did you mean of.merchantid = m.id? If that is the case, change the LEFT to RIGHT join.
It's nice to find such a useful site with genius members. I have been trying to find a solution for this SQLITE problem for a while now. Google didn't help me, except in finding this website. The SQL query works fine on the MSAccess version of the same database.
Here's my SQL statement - which didn't work for me.
SELECT Invoices.InvoiceNumber, Invoices.Quantity,Invoices.Code, Invoices.Price,Invoices.Discount, Invoices.InvoiceGrandTotal, Employees.EmployeeName, Customers.CustomerName, Invoices.DateOfInvoice, [price]*[Quantity] AS Total, Customers.Address, Products.Description,Products.Unit
FROM Products
INNER JOIN (
(
( Invoices INNER JOIN InvoiceDetails
ON Invoices.InvoiceNumber = InvoiceDetails.InvoiceNumber
) INNER JOIN Customers
ON Invoices.CustomerID = Customers.CustomerID
) INNER JOIN Employees
ON Invoices.UserID = Employees.EmployeeID
) ON Products.Code = InvoiceDetails.Code
WHERE (((InvoiceDetails.InvoiceNumber)='10111'));
The error message is: "Cannot compile Select-Statement: no such column: Invoices.InvoiceNumber"
That usually just means that you mis-spelled the column name ... check your Invoices table and make sure the column is InvoiceNumber and not "Invoice_Number" or something similar ...
Also, a much simpler version of this query would look something like this .. without all the strange nesting:
SELECT
Invoices.InvoiceNumber,
Invoices.Quantity,
Invoices.Code,
Invoices.Price,
Invoices.Discount,
Invoices.InvoiceGrandTotal,
Employees.EmployeeName,
Customers.CustomerName,
Invoices.DateOfInvoice,
[price]*[Quantity] AS Total,
Customers.Address,
Products.Description,
Products.Unit
FROM
Invoices
JOIN Employees
ON Employees.EmployeeID = Invoices.UserID
JOIN Customers
ON Customers.CustomerID = Invoices.CustomerID
JOIN InvoiceDetails
ON InvoiceDetails.InvoiceNumber = Invoices.InvoiceNumber
JOIN Products
ON Products.Code = InvoiceDetails.Code
WHERE
InvoiceDetails.InvoiceNumber = '10111'
I think the issue might be with case sensitivity. Unless I'm mistaken, MS Access field names are not case sensitive. Check the offending column name for the correct casing in you SQLITE table definition.