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Similar to AND, the OR operator can also be used to combine multiple conditions in WHERE, but there is a fundamental difference:

  • AND operator displays a row if all the conditions are true.
  • OR operator displays a row if any condition is true.

Suppose we want to check out a new movie or something action-packed:

SELECT *
FROM movies
WHERE year > 2014
   OR genre = 'action';

  • year > 2014 is the 1st condition.

  • genre = 'action' is the 2nd condition.

  • OR combines the two conditions.

OR Venn Diagram

With OR, if any of the conditions are true, then the row is added to the result.

Instructions

1.

Let’s test this out:

SELECT *
FROM movies
WHERE year > 2014
   OR genre = 'action';
2.

Suppose we are in the mood for a good laugh or a good cry.

Using OR, write a query that returns all movies that are either a romance or a comedy.

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