QSql参数计数不匹配

Question

我正在使用QtSql和sqlite，问题是：

QSqlQuery query;
query.prepare("SELECT * FROM [main].[items] WHERE barcode = ? OR name = ? ");
query.addBindValue(ui->Numberinput->text());
query.addBindValue(ui->search_item->text());
query.exec();
query.first();
qDebug() << query.lastError().text();

我得到“参数计数不匹配”

Answer 1

@tskoglund在Qt论坛中的解决方案＆lt; https://forum.qt.io/topic/72260/qsqlquery-select-statment/5＆gt;

QString s = QString("SELECT * FROM [main].[items] WHERE barcode = '%1' OR name = '%2'").arg(ui->Numberinput->text()).arg(ui->search_item->text());

QSqlQuery查询;