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Version: current [25.0.x]

UNHEX

Categories: Conversion, String, Binary

UNHEX

Converts the hexadecimal number into the bytes represented by a number.

Syntax​

UNHEX(expression varchar) → varbinary​

  • expression: A string containing only hexadecimal digits.

Examples

UNHEX example
SELECT UNHEX('4472656D696F')
-- RHJlbWlv

Usage Notes​

The returned value is a binary string. If the expression contains non-hex characters the result is NULL.