BIGINT PMOD(BIGINT x, BIGINT y) DOUBLE PMOD(DOUBLE x, DOUBLE y) Returns the positive result of x mod y in the residue systems. Formally, return (x%y+y)%y.
MySQL [test]> SELECT PMOD(13,5); +-------------+ | pmod(13, 5) | +-------------+ | 3 | +-------------+ MySQL [test]> SELECT PMOD(-13,5); +-------------+ | pmod(-13, 5) | +-------------+ | 2 | +-------------+
PMOD