It seems to me that it could be improved error exceptions with the code returned by the database

[dertin]

I did not find exactly where this extra information could be added which is useful when evaluating the type of error by means of a code.

try {
    throw new Exception("Can't write; duplicate key in table", 1022);
} catch(Exception $e) {
    echo "The exception code is: " . $e->getCode();
}

https://dev.mysql.com/doc/refman/8.0/en/error-messages-server.html https://www.postgresql.org/docs/current/static/errcodes-appendix.html

[FlipEverything]

+1