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In Projects, you can keep track of your progress as you go throught the tasks. Check each item as you complete it!

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Query Results

Run a query to see results.

Database Schema

Schema undefined.

Is Null

By this point of the lesson, you might have noticed that there are a few missing values in the movies table. More often than not, the data you encounter will have missing values.

Unknown values are indicated by NULL.

It is not possible to test for NULL values with comparison operators, such as = and !=.

Instead, we will have to use these operators:


To filter for all movies with an IMDb rating:

SELECT name FROM movies WHERE imdb_rating IS NOT NULL;
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