Mysql - Added Password Generated Separately

Question

I’m trying to insert Customers but with a password that is generated by a code but I’m not quite sure how to implement the use of this.

site.get("/processa_InsereCliente", function (req, res) {

    // verificação se todos os atributos necessários foram preenchidos no formulário anterior
    if (req.query.Nome_cliente && req.query.Morada_cliente && req.query.CP_cliente && req.query.Localidade_cliente && req.query.Telefone_cliente && req.query.Email_cliente && req.query.Profissao_cliente && req.query.NIF_cliente) {
        var query = "INSERT INTO Clientes VALUES(null," + mysql.escape(req.query.Nome_cliente) + ',' + 

            mysql.escape(req.query.Password_cliente) + 

            "," + mysql.escape(req.query.Morada_cliente) + "," + mysql.escape(req.query.CP_cliente) + "," + mysql.escape(req.query.Localidade_cliente) +
            "," + mysql.escape(req.query.Telefone_cliente) +
            "," + mysql.escape(req.query.Profissao_cliente) +
            "," + mysql.escape(req.query.Dn_cliente) +
            "," + mysql.escape(req.query.NIF_cliente) + ")";
        runQuery(query, function (result) {

            if (result && result.affectedRows > 0) {
                res.redirect('/');
            } else {
                res.redirect('/Assinatura')
            }

        });
    } else {
        res.redirect('/')
    }
});

The page that inserts the clients fetches the data from a form on another page, and this part works, but the part of mysql.escape (req.query.Password_client) wanted it to be replaced by the variable generated by the following code:

  <script>
        function generatePassword() {
            var length = 8,
                charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
                Password = "";
            for (var i = 0, n = charset.length; i < length; ++i) {
                Password += charset.charAt(Math.floor(Math.random() * n));
            }
            alert(Password);
        }

    </script>

I don’t know if I’m doing the best or even the right way, but so far I haven’t been able to find similar to help me solve this problem.

Thank you for all your help!!