mysql min where statement

Question

so we have the mysql MIN() function for getting the minimum in a table...but what if I want to get a MIN() based on a criteria

so something like MIN(age) WHERE height &

Answer 1

You say you want the "minimum age of ONLY people whose height is < 170"

SELECT MIN(age)
FROM YourTable
WHERE height < 170

Will in fact work as you require then!

WHERE limits row pre aggregation, HAVING can be used to filter on the results of aggregations.