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Databases SQL Basics Finding the Data You Want Filtering on More than One Condition

Posted by Darrin Watkins
Darrin Watkins
306 Points

Select * FROM movies WHERE id or title or year_released or genre IS NULL; getting all results instead of just Nulls why

I should only see two records from this query, instead i am seeing records with No NULL values as well..

3 Answers

Arturo Alviar
Arturo Alviar
15,739 Points
Arturo Alviar
Arturo Alviar
15,739 Points

Hi Darrin,
Currently, you are only checking if genre IS NULL.
Try adding IS NULL after every column name and before the ors (title IS NULL or year_released IS NULL etc).

Darrin Watkins
Darrin Watkins
306 Points
Darrin Watkins
Darrin Watkins
306 Points

Thanks Arturo, that's what I ended up doing and it worked.. Appreciate your quick response. Question: Is there any other way this can be written to achieve the same result.

Charlie Krell
Charlie Krell
2,184 Points
Charlie Krell
Charlie Krell
2,184 Points

Hi Darrin,

I know this is old, but I was playing around with trying parenthesis like (title OR year_released) IS NULL. That doesn't seem to work, so I do think you have to use IS NULL each time.

kevin hudson
PLUS
kevin hudson
Courses Plus Student 11,987 Points
kevin hudson
kevin hudson
Courses Plus Student 11,987 Points

You are misunderstanding the answer statement. The Parenthesis used was to show how to write in the statement. Don't use ().