Question

I’m trying to make a select that calculates affiliate payouts.

my approach is pretty simple.

SELECT  month(payments.timestmap) ,sum(if(payments.amount>=29.95,4,0)) As Tier4 ,sum(if(payments.amount>=24.95<=29.94,3,0)) As Tier3 ,sum(if(payments.amount>=19.95<=24.94,2,0)) As Tier2 FROM payments GROUP BY month(payments.timestamp) 

The above does not work because MySQL is not evaluating the second part of the condition. Btw it does not cause a syntax error and the select will return results.

Before the above I tried what I was assuming would work like ‘amount between 24.94 AND 29.94‘ this caused an error. so then I tried ‘amount >= 24.94 AND <= 29.94‘

So is it possible to have a range comparison using IF in MySql?

Answer 1

The second part of the expression evaluates when you use AND –

SELECT  month(payments.timestmap) ,sum(if(payments.amount>=29.95,4,0)) As Tier4 ,sum(if(payments.amount>=24.95 AND payments.amount<=29.94,3,0)) As Tier3 ,sum(if(payments.amount>=19.95 AND payments.amount<=24.94,2,0)) As Tier2 FROM payments GROUP BY month(payments.timestamp) 

I’m not entirely sure why the between clause didn’t work for you, but the above should do the job.