SQL Join Visualized (repost)

I write this post because:

• The original blog hosting provider is having error, I cannot enlarge the summary image. link.
• It’s super useful.

All credit goes to C.L. Moffatt. Thank you so much!

References

• Visual Representation of SQL Joins, Feb 4, 2009, https://www.codeproject.com/Articles/33052/Visual-Representation-of-SQL-Joins
• sql joins as venn diagram, Dec 21, 2012, https://stackoverflow.com/questions/13997365/sql-joins-as-venn-diagram