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HEX

Description​

If the input parameter is a number, return the string representation of the hexadecimal value.

If the input parameter is a string, convert each character to two hexadecimal characters, concatenate all the converted characters into a string for output.

Syntax​

HEX ( <str> )

Parameters​

ParameterDescription
<str>Input parameter is a number or a string

Return value​

The hexadecimal result of parameter <str>.

Example​

The input parameter is a number

SELECT HEX(12),HEX(-1)
+---------+------------------+
| hex(12) | hex(-1) |
+---------+------------------+
| C | FFFFFFFFFFFFFFFF |
+---------+------------------+

The input parameter is a string

SELECT HEX('1'),HEX('@'),HEX('12')
+----------+----------+-----------+
| hex('1') | hex('@') | hex('12') |
+----------+----------+-----------+
| 31 | 40 | 3132 |
+----------+----------+-----------+