supp.credit_limit - Sum(IFNULL(IF(trans.type=".ST_SUPPCREDIT.", -1, 1)
* (ov_amount + ov_gst + ov_discount),0)) as cur_credit,
terms.terms, terms.days_before_due, terms.day_in_following_month
supp.credit_limit - Sum(IFNULL(IF(trans.type=".ST_SUPPCREDIT.", -1, 1)
* (ov_amount + ov_gst + ov_discount),0)) as cur_credit,
terms.terms, terms.days_before_due, terms.day_in_following_month