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Databases Querying Relational Databases Subqueries Subqueries

Taylor Han
Taylor Han
2,406 Points
Posted by 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
229,657 Points
Steven Parker
Steven Parker
229,657 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").