mysql> select rand(-20, -10); +------------------+ | random(-20, -10) | +------------------+ | -13 | +------------------+ 1 row in set (0.10 sec)
mysql> select rand(-20, -10); +------------------+ | random(-20, -10) | +------------------+ | -13 | +------------------+ 1 row in set (0.10 sec)