Save up to $499! Grab all Python courses for $49 or all online courses we’ve ever launched for only $169. Only Feb 11-16. Happy Valentine's!
The very basics
Infinite looping
Processing trees with recursive CTE
Processing graphs with recursive CTE


Very well! We'll now see a very common mistake with recursive CTEs. What is the error? Let's see it in an exercise.


We have changed the value 'Boss' in the anchor query to column last_name.

Try to run the query. What do you think will happen?