HEX
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Returns the hexadecimal representation of numeric, string, or binary data.
Note
Beginning with version 8.HEX() calculates the values of real and decimal numbers is changed to be more in line with how MySQL HEX() works.HEX() will return updated values.
Syntax
HEX (expression)
Arguments
-
expression: any valid expression.
This can be a column name, literal, or the return value of another function.
Return Type
Upper-case hexadecimal string.
Examples
SELECT HEX(1234);
+-----------+
| HEX(1234) |
+-----------+
| 4D2 |
+-----------+SELECT HEX('1234');
+-------------+
| HEX('1234') |
+-------------+
| 31323334 |
+-------------+SELECT HEX('ohai');
+-------------+
| HEX('ohai') |
+-------------+
| 6F686169 |
+-------------+Note
This function operates on the binary representation of the given argument.hex(1234) and hex('1234') yield different values.hex( number ) cannot be fed directly into UNHEX to get back the literal number 1234.
Related Topics
Last modified: June 6, 2024