Question

I’ve been working this puzzle and I am stuck on this very last bit. I have a single SQL statement in a SQL query:

UPDATE courses SET pid=? WHERE course_name=?;

Parameters are passed and replace the ?s sequentially like so: (query, “Biology”, 345533).

How can I change my SQL syntax (ie switch the order of pid=? and course_name=?) to point “Biology” to course_name and 345533 to pid?

Rules: Only one (1) SQL statement is allowed. Cannot change the order of parameters.

Answer 1

Assuming that Cade Roux is on the right track in terms of what is desired, you could try:

Update c
Set pid =   Case
                When course_name = ? Then ?
                Else pid
                End