Question

And again, could any Mysql expert help me with Mysql statement?
What i have: 2 tables connected with foreign keys userid and balanceID

What I need: I need to find row where is MAX value of lets say debt and MIN value of lets say loan, What i expect from this statement is to find highest value debt and the lowest loan (1 row) for example : in this case it would be row name2 | 200 | 40. Is that possible? Have done research and couldnt find solution, any help appreciated.

Answer 1

Just a guess based on your minimal data set, but perhaps something like:

select top 1 balanceID, balance, debt, loan
from Balance
order by debt - loan desc

If you want to group by UserID, something like:

select b.balanceID, b.balance, b.debt, b.loan
from Balance b
inner join (
    select UserID, max(debt - loan) as MaxDebt
    from Balance
    group by UserID
) bm on b.UserID = bm.UserID and (b.debt - b.loan) = MaxDebt