Question

I need to get a result from two selects, and compare them.

Their values should return 0 or 1, if one of them is 1, then it’s 1.
1 will always have a greater priority than 0.

This:

1. 1st returns 0, 2nd returns 1, then it’s 1.
2. 1st returns 1, 2nd returns 0, then it’s 1.
3. Both returns 1, obviously it’s 1.
4. Both returning 0, finally it’s 0.

Answer 1

Just wrap it in another SELECT and use OR. MySQL already treats 1 as true and 0 as false.

Try these:

SELECT (SELECT 1) OR (SELECT 0) AS result
// Returns 1

SELECT (SELECT 0) OR (SELECT 0) AS result
// Returns 0