public static void insertCouleur(String libelle) throws SQLException {
        String query = "";

        try {
            query = "INSERT INTO COULEUR(COULIBELLE) VALUES(?);";
            PreparedStatement pStatement = ConnectionBDD.getInstance().getPreparedStatement(query);
            pStatement.setString(1, libelle.toUpperCase());
            pStatement.executeUpdate();
        } catch (SQLException ex) {
            Logger.getLogger(RequetesCouleur.class.getName()).log(Level.SEVERE, null, ex);

        }
    }