创建数据模型：

QSqlQueryModel  *qryModel; //数据模型
qryModel=new QSqlQueryModel(this);qryModel->setQuery("SELECT empNo, Name, Gender, Height, Birthday, Mobile, Province, City, Department, "" Education, Salary FROM employee ORDER BY empNo");if (qryModel->lastError().isValid()){QMessageBox::critical(this, "错误", "数据表查询错误,错误信息\n"+qryModel->lastError().text(),QMessageBox::Ok,QMessageBox::NoButton);

设置字段：

qryModel->setHeaderData(0,Qt::Horizontal,"工号");qryModel->setHeaderData(1,Qt::Horizontal,"姓名");qryModel->setHeaderData(2,Qt::Horizontal,"性别");qryModel->setHeaderData(3,Qt::Horizontal,"身高");qryModel->setHeaderData(4,Qt::Horizontal,"出生日期");qryModel->setHeaderData(5,Qt::Horizontal,"手机");qryModel->setHeaderData(6,Qt::Horizontal,"省份");qryModel->setHeaderData(7,Qt::Horizontal,"城市");qryModel->setHeaderData(8,Qt::Horizontal,"部门");qryModel->setHeaderData(9,Qt::Horizontal,"学历");qryModel->setHeaderData(10,Qt::Horizontal,"工资");theSelection=new QItemSelectionModel(qryModel);

执行sql语句：

    QSqlQuery query; //查询当前empNo的Memo和Photo字段的数据query.prepare("select EmpNo, Memo, Photo from employee where EmpNo = :ID");query.bindValue(":ID",empNo);query.exec();query.first();