c++ - 使用 qt 在 SQLITE 数据库中插入多行

Question

您好，我正在尝试使用 qt 5.4 将多行(在本例中为两行)插入到 SQLITE 数据库中。我一直在关注文档，但程序一直在崩溃，我无法解释原因。

query_Invoice.prepare("INSERT INTO Invoice VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
QVariantList Invoice_Number, Date_Time, Total_Purchased, Qty, Description, Product_CODE, Unit_Price, Total_Price, Goods_Total, VAT_Invoice, Company_ID;
Invoice_Number << 1 << 2;
Date_Time << 1776-07-04 << 1776-07-05;
Total_Purchased << 2 << 3;
Qty << 50 << 60;
Description << "Paint" << "Drill" << QVariant(QVariant::String);
Product_CODE << "EEFF2" << "EEF23" << QVariant(QVariant::String);
Unit_Price << 12 << 13;
Total_Price << 53 << 66;
Goods_Total << 70 << 80;
VAT_Invoice << 55 << 66;
Company_ID << 1 << 2;
query_Invoice.addBindValue(Invoice_Number);
query_Invoice.addBindValue(DateTime);
query_Invoice.addBindValue(Total_Purchased);
query_Invoice.addBindValue(Qty);
query_Invoice.addBindValue(Description);
query_Invoice.addBindValue(Product_CODE);
query_Invoice.addBindValue(Unit_Price);
query_Invoice.addBindValue(Total_Price);
query_Invoice.addBindValue(Goods_Total);
query_Invoice.addBindValue(VAT_Invoice);
query_Invoice.addBindValue(Company_ID);
query_Invoice.execBatch();
qDebug() << query_Invoice.executedQuery();
qDebug() << query_Invoice.lastError();

Answer 1

首先尝试成功插入一行。您需要指定值对应于表中的哪些列。

query_Invoice.prepare( "INSERT INTO Invoice ( column_name1, column_name2, column_name3 ) VALUES ( ?,?,? )" );

另外，addBindValue( DateTime ) 应该是 addBindValue( Date_Time )。

还有，

query_Invoice.prepare("INSERT INTO Invoice VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"); <---- Closing paren after last '?'