QTableView и QSqlTableModel

void MainWindow::on_pushButton_clicked()
{
    QSqlTableModel model;
 
    initializeModel(&model);
 
    QTableView *view1 = createView(&model, QObject::tr("Table Model (View 1)"));
    QTableView *view2 = createView(&model, QObject::tr("Table Model (View 2)"));
 
    view1->show();
    view2->move(view1->x() + view1->width() + 20, view1->y());
    view2->show();
 
    qDebug() << view1->model();
}

void initializeModel(QSqlTableModel *model)
{
    model->setTable("users");
    model->setEditStrategy(QSqlTableModel::OnManualSubmit);
    model->select();
 
    model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID"));
    model->setHeaderData(1, Qt::Horizontal, QObject::tr("First name"));
    model->setHeaderData(2, Qt::Horizontal, QObject::tr("Last name"));
}

QTableView *createView(QSqlTableModel *model, const QString &title = "")
{
    QTableView *view = new QTableView;
    view->setModel(model);
    view->setWindowTitle(title);
    return view;
}

QSqlTableModel *model = new QSqlTableModel;
initializeModel(model);
ui->tableView->setModel(model);