How to return 0 instead of null when using COUNT in MySQL

Question

I am using this query to return return a list of songs stored in $sTable along with a COUNT of their total projects which are stored in $sTable2.

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Answer 1

COALESCE() returns the first non-null argument. So if you say COALESCE(count(...),0) it will return the count(...) if it's not null, or it will return 0 if the count(...) is null