How does MySQL handle HEX numbers when updating a TEXT field in a database?

When updating a TEXT field in a MySQL database with a HEX number, MySQL may interpret it as a string instead of a hexadecimal value. To ensure the HEX number is stored correctly, you can use the UNHEX() function to convert the HEX string to binary before updating the field. 

// Assuming $hexNumber contains the HEX number to update
$hexNumber = '1A2B3C';

// Connect to the database
$connection = new mysqli('localhost', 'username', 'password', 'database');

// Convert HEX number to binary
$binaryNumber = $connection->real_escape_string(hex2bin($hexNumber));

// Update the TEXT field with the binary value
$query = "UPDATE table_name SET text_field = UNHEX('$binaryNumber') WHERE condition";
$connection->query($query);

// Close the database connection
$connection->close();

Keywords

MySQL HEX numbers TEXT field updating database

Related Questions