See DBI placeholders

With most drivers, placeholders can't be used for any element of a statement that would prevent the database server from validating the statement and creating a query execution plan for it.

i.e database names, table names, column names etc. Try

$sql = "GRANT ALL ON $db.* TO ?@? IDENTIFIED BY ?";
$dbh->do($sql, {}, $user, $host, $password);

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poj

In reply to Re: MySQL syntax error GRANT by poj
in thread MySQL syntax error GRANT by Anonymous Monk

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