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MySQL | UNHEX method

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MySQL
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String
schedule Mar 9, 2022
Last updated
local_offer MySQL
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MySQL's UNHEX(~) method returns a binary string from the hexadecimal string representation. For strings, UNHEX(~) is the inverse of the HEX(~) method.

For numeric arguments, the inverse of HEX(~) is performed by CONV(hexadecimal, 16, 10)

NOTE

Hexadecimal is base 16, where there are 16 digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F. A through F in hexadecimal is 10 through 15 in decimal notation.

Parameters

1. str | string

The hexadecimal to return the binary string for.

Return value

A binary string representation of the input hexadecimal string.

Examples

To return a binary string from the hexadecimal string '4170706C65':

SELECT UNHEX('4170706C65');
+---------------------+
| UNHEX('4170706C65') |
+---------------------+
| Apple |
+---------------------+
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Published by Arthur Yanagisawa
Edited by 0 others
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