Question

I’ve got a table named nobel with the following fields: yr, subject and winner.

This table represents winners of nobel prize winners in a variety of subjects over the years.

I am looking for the years in which the Physics Prize was awarded but no Chemistry prize.

I was thinking the answer would look something like the following:

SELECT yr FROM nobel 
WHERE subject ('Chemistry') IN (SELECT subject FROM nobel WHERE subject = 'Physics')

I’m fairly certain I’ve got the syntax wrong… and i’m not certain i’m going down the right road. Help would be appreciated. Thanks!

Answer 1

Try this:

SELECT yr 
FROM nobel n1 
WHERE n1.subject = 'Physics'
AND yr NOT IN (SELECT yr FROM nobel WHERE subject = 'Chemistry')