FAQ: Queries - Order By

This community-built FAQ covers the “Order By” exercise from the lesson “Queries”.

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This exercise can be found in the following Codecademy content:

Web Development
Data Science

Learn SQL

FAQs on the exercise Order By

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In what case do we need to specify ASC explicitly? If it’s the default, we never need it, do we?

You wouldn’t need to, I don’t believe, in a standard SQL query, but I suppose one might use it if the query were written in function in a language like Python or JavaScript where the ORDER BY direction [ASC or DESC] might be dependent on some condition.

Hi.

How does one use ORDER BY, while also filtering out NULL results?

SELECT *
FROM movies
WHERE year > 1990 AND imdb_rating IS NOT NULL
ORDER BY name ASC, imdb_rating ASC;

But I’m not returning any results now that IS NOT NULL condition is there. Curious how that would work?

Thanks!