Users on my site can aqquire points for certain actions. My table is:
member_id | points_count | points_type | points_for | date
points_count are the points that are credited/debited
points_type is either a credit (1) or debit (2).
I had originally just added and subtracted the points in my member table, but now id like to keep track of what the points were credited for.
SELECT SUM(credits.points_count) as points_credits, SUM(debits.points_count) as points_debits FROM loyalty_balance as credits JOIN loyalty_balance as debits ON debits.member_id = '".$_SESSION['kt_login_id']."' AND debits.points_type = '2' WHERE credits.points_type = '1' AND credits.member_id = ".$_SESSION['kt_login_id']." $loyalty_points = $row['points_credits']-$row['points_debits'];
Would someone be able to show me the correct statement to achieve this? And if posible do something like
SUM(credits)-SUM(debits) as loyalty_points
Thanks in advance for any help you can provide!