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Hello ! I would like some help in this challange. thanks

There are two tables Fruit and Vegetable table. The Fruit table has a FruitID and a Name column and the Vegetable table has a VegetableID and Name column. Create an alphabetical list of produce that is considered both a fruit and a vegetable.

Select Fruit ID and Vegetable ID where name fruit column= INTERSECT vegetable name, name order by name asc;

the link: https://teamtreehouse.com/library/querying-relational-databases/set-operations/set-operations

Select name from fruit union select name from vegetable; (missing intersection)

3 Answers

Steven Parker
Steven Parker
230,230 Points

Here's a few hints:

  • you want to return the Name of the items, not their ID's
  • your set operator should go between full queries (with SELECT and FROM clauses)
  • you want a complete list, so your set operation would be UNION instead of INTERSECT
  • for task 1 no filtering (WHERE) or sorting (ORDER BY) is needed

And remember to delete your duplicate question.

Hello Steven ! I receive a bummer message missing intersect!!! select name from fruit union select name from vegetable;

now is ok! > Select name from fruit intersect select name from vegetable order by name asc;


Steven Parker
Steven Parker
230,230 Points

My hints were based on the requirements for task 1. Which task are you stuck on?

Hi, Steve! now I have problem with subquery : SELECT Model.ModelID, ModelName, StickerPrice FROM Model LEFT OUTER JOIN Car ON Model.ModelID = Car.ModelID WHERE Car.CarID IN(SELECT Car.CarID FROM Car WHERE StickerPrice >30000);


I would like get some hints from you. Thanks

Steven Parker
Steven Parker
230,230 Points

They only want to see ModelName on that one, and you don't need a JOIN. Just a WHERE clause using IN and a subquery that returns the ModelID.

Don't forget to delete your duplicate question and this one. But it's fine to create a new question for a different challenge.

Umm.. looks like I did stumble on the duplicate question.

Dave AB
Dave AB
2,617 Points

So you are intersecting names existing on both tables .

SELECT name FROM fruit INTERSECT SELECT name FROM vegetable ORDER BY name;


Steven Parker
Steven Parker
230,230 Points

:warning: FYI: Explicit answers without any explanation are strongly discouraged by Treehouse and may be redacted by moderators.