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Databases

Posted by Brian Jemison
Brian Jemison
3,832 Points

Issues with subquery challenge task.

I am trying to complete one of the subquery challenge tasks and keep getting it wrong despite my best efforts. The case is as follows: In a car database there is a Sale table with columns, SaleID, CarID, CustomerID, LocationID, SalesRepID, SaleAmount and SaleDate and a Customer table with columns, CustomerID, FirstName, LastName, Gender and SSN. Use a subquery along with IN to list all sales to female customers. (Gender = 'F') Select all columns. My query is: SELECT * FROM Sale WHERE CustomerID IN (SELECT CustomerID FROM Customer WHERE Gender = 'F') AS c ON Sale.CustomerID = c.CustomerID;

Umesh Ravji
Umesh Ravji
42,386 Points
Umesh Ravji
Umesh Ravji
42,386 Points

Could you please clarify, is it task 3 or 4 you are having this issue with?

Brian Jemison
Brian Jemison
3,832 Points

Hi, Umesh. It's for challenge task 3.

1 Answer

Steven Parker
Steven Parker
231,128 Points
Steven Parker
Steven Parker
231,128 Points

You seem to have mixed two different queries together.

Your query makes sense up through the sub-query, but starting with "AS ..." the rest does not appear to belong there. Did you originally write this using a JOIN and then convert it to a subquery?

Try removing everything after and including AS.

Brian Jemison
Brian Jemison
3,832 Points

Ahhh. Thank you Steven. You were correct. The first time I tried submitting my answer I was using an inner join before realizing I didn't IN in my WHERE statement. Thank you so much!

Farai Tanekha
Farai Tanekha
10,669 Points

Thank you soooo much :)