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Databases Querying Relational Databases Subqueries Subqueries

Taylor Han
Taylor Han
2,406 Points

In my yellow subquery, my yellow subquery (task 2)

In a car database there is a Sale table with columns, SaleID, CarID, CustomerID, LocationID, SalesRepID, SaleAmount and SaleDate and a Car table with columns, CarID, ModelID, VIN, ModelYear and StickerPrice.

Use a subquery along with IN to list all sales of cars with Sticker Price greater than $30000. Include all columns.

What I tried:

SELECT SaleID FROM Sale WHERE CarID IN (SELECT CarID FROM Car WHERE StickerPrice > 30000);

I think my syntax is ok, but it says I'm not including all columns. Is this an outer join?

Thank you!

1 Answer

Steven Parker
Steven Parker
231,269 Points

This code is selecting only the "SaleID" column.
When they say "include all columns" they expect you to use "SELECT * " (the asterisk represents "all columns").