How To Enter Characters as HEX Numbers

Q

How To Enter Characters as HEX Numbers? - MySQL FAQs - Introduction to SQL Basics

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A

If you want to enter characters as HEX numbers, you can quote HEX numbers with single quotes and a prefix of (X), or just prefix HEX numbers with (0x). A HEX number string will be automatically converted into a character string, if the expression context is a string. Here are some good examples:

SELECT X'313233' FROM DUAL;
   123

SELECT 0x414243 FROM DUAL;
   ABC

SELECT 0x46594963656E7465722E636F6D FROM DUAL;
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2007-05-11, 5976👍, 0💬