Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Databases

Andrew Federico
Andrew Federico
7,498 Points
Posted by Andrew Federico
Andrew Federico
7,498 Points

Is the EXCEPT Venn Diagram correct in this video?

Re: https://teamtreehouse.com/library/review-and-practice-2

I realize I am new to this, but in the video at 1:05, the way the Venn diagram is shown, implies it will return more than "EXCEPT" should, and the intersecting data of TV Stand should be shaded along with Electronics to show it will all be excluded with only Furniture returned.

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Based on the diagram shown for Intersection, the light blue highlighting is being used to indicate records returned, not records omitted. And with that in mind, the diagram for Except is accurate for when the first query returns values for "Electronics".

Note that this differs from the diagram shown for Union, where nothing was highlighted but I would expect that everything would be.

You might want to report this as a bug to Support.