HEX
Syntax
HEX(N_or_S)
Description
If N_or_S is a number, returns a string representation of the hexadecimal
value of N, where N is a longlong (BIGINT) number. This is equivalent to CONV(N,10,16).
If N_or_S is a string, returns a hexadecimal string representation of
N_or_S where each byte of each character in N_or_S is converted to two hexadecimal
digits. If N_or_S is NULL, returns NULL. The inverse of this operation is performed by the UNHEX()
function.
MariaDB starting with 10.5.0
HEX() with an INET6 argument returns a hexadecimal representation of the underlying 16-byte binary string.
Examples
SELECT HEX(255); +----------+ | HEX(255) | +----------+ | FF | +----------+ SELECT 0x4D617269614442; +------------------+ | 0x4D617269614442 | +------------------+ | MariaDB | +------------------+ SELECT HEX('MariaDB'); +----------------+ | HEX('MariaDB') | +----------------+ | 4D617269614442 | +----------------+
From MariaDB 10.5.0:
SELECT HEX(CAST('2001:db8::ff00:42:8329' AS INET6)); +----------------------------------------------+ | HEX(CAST('2001:db8::ff00:42:8329' AS INET6)) | +----------------------------------------------+ | 20010DB8000000000000FF0000428329 | +----------------------------------------------+
See Also
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