@isladogs I must have sent it to you years ago when I first created it since that is the menu page. I think I built the original in 2014 but the database was never publicly posted.
I never saw the sample by Steve Stedman, nor any other sample using Venn diagrams to depict join types. Can you tell how old it is? I'm curious. Maybe I've never seen one because I've probably never searched for info on joins. Steve's sample takes the visualization to three tables. I wonder what he meant by the two tables picture. Maybe that is a union. I forgot to do a Union separately because I used the union in the Full Outer join. But I did include a cross join. Looks like I need to add the union to the database
Thanks for that picture. I think I'll make the union as two circles on top of each other rather than side by side.
I also never saw the image
@jdraw created.
Venn diagrams may be so last year but the substitute is a mystery to me. No one ever had to explain a Venn diagram to me. I understood the graphic as soon as I saw one for the first time.
I'm not sure when I saw my first Venn diagram. I'm pretty sure it wasn't in a math class. I didn't take Calculous either. And it wasn't a description of how joins work. It was probably a three circle picture showing the intersection of three things like Republicans/Democrats/Libertarians showing their shared and separate believes.