private void jmi_new_tableActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_jmi_new_tableActionPerformed
    {//GEN-HEADEREND:event_jmi_new_tableActionPerformed
        NewTableDialog ntd = new NewTableDialog(this, true);
        ntd.setLocation(get_center(ntd.getWidth(), ntd.getHeight(), false));
        ntd.setVisible(true);
        if (ntd.isOk())
        {
            DBTable dbt = ntd.getTable();
            String q = dbt.createSQL();

            sql_exe.set_query_and_exec(q);
            set_data_tree();
        }
        ntd.dispose();

    }//GEN-LAST:event_jmi_new_tableActionPerformed