STRING bin(BIGINT x) Convert the decimal number x to binary.
mysql> select bin(0); +--------+ | bin(0) | +--------+ | 0 | +--------+ mysql> select bin(10); +---------+ | bin(10) | +---------+ | 1010 | +---------+ mysql> select bin(-3); +------------------------------------------------------------------+ | bin(-3) | +------------------------------------------------------------------+ | 1111111111111111111111111111111111111111111111111111111111111101 | +------------------------------------------------------------------+
BIN