Amazing work! It's time to wrap things up. In this part, we learned that:

• A recursive CTE is a CTE that refers to itself.
• The general syntax is:

  WITH RECURSIVE cte_name AS (
    SELECT 
      ... -- anchor member
    UNION (ALL)
    SELECT 
    ... 
    FROM cte_name ... -- recursive member
    WHERE .... -- termination check
  )
  
  SELECT 
    ... 
  FROM cte_name ... -- invocation

• The anchor member is the starting point for recursion.
• The recursive member must query the same CTE.
• The termination check stops the recursion at some point.
• The invocation is used to show any results.

Okay, are you ready for a short quiz?