UNHEX() - HEX to String Conversion
Q
How to convert a hexadecimal string to a byte sequence using the UNHEX() function?
✍: FYIcenter.com
A
UNHEX(in) is a MySQL built-in function that
converts a hexadecimal string to a byte sequence.
For example:
SELECT UNDEX('465949'), HEX('FYI');
-- +-----------------+------------+
-- | UNHEX('465949') | HEX('FYI') |
-- +-----------------+------------+
-- | FYI | 465949 |
-- +-----------------+------------+
Reference information of the UNDEX() function:
UNHEX(hex): bytes Interprets each pair of characters in the argument as a hexadecimal number and converts it to the byte represented by the number. The return value is a binary string. Arguments, return value and availability: hex: Required. The hexadecimal string to be converted. bytes: Return value. The converted byte sequence. Available since MySQL 5.7.
Related MySQL functions:
⇒ UPPER() - Convert String to Upper Case
⇐ UCASE() - Synonym for UPPER()
2023-11-13, 1896🔥, 0💬
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