How has COALESCE function changed in recent MySQL versions?

The COALESCE function in MySQL has undergone some changes in its functionality and performance in recent versions. The function is widely used to return the first non-null value in a list of arguments, which is particularly useful in handling NULL values effectively in SQL queries.

MySQL COALESCE function, COALESCE changes in MySQL, handle NULL values in MySQL, COALESCE example, MySQL functions


        <?php
        // Example of COALESCE function in MySQL
        $query = "SELECT COALESCE(column1, column2, 'default value') AS result
                  FROM your_table;";
        ?>