C++ Qt-sql查询失败
但是C++ Qt-sql查询失败,c++,mysql,qt,qtsql,C++,Mysql,Qt,Qtsql,但是 工作正常。很难猜出问题所在。但是有一件事我可以想象,而且你的代码肯定是错误的,bindValue的字段编号从0开始(请参阅) 因此,我建议尝试一下 query->exec("INSERT INTO businessweek (id, source, date, headline, body) VALUES (NULL, 'google', 'may 0, 23', 'head', 'fjsdflksjdlkfdsjlfkjd');") query->prepare(“插入到商业周刊
工作正常。很难猜出问题所在。但是有一件事我可以想象,而且你的代码肯定是错误的,
bindValue
的字段编号从0开始(请参阅)
因此,我建议尝试一下
query->exec("INSERT INTO businessweek (id, source, date, headline, body) VALUES (NULL, 'google', 'may 0, 23', 'head', 'fjsdflksjdlkfdsjlfkjd');")
query->prepare(“插入到商业周刊(id、来源、日期、标题、正文)中)值(空、、、、、、?)”;
查询->绑定值(0,“源”);
查询->绑定值(1,“日期”);
查询->绑定值(2,“标题”);
查询->绑定值(3,“主体”);
如果(查询->执行()){
tt
QSqlError(-1, "", "")
query->exec("INSERT INTO businessweek (id, source, date, headline, body) VALUES (NULL, 'google', 'may 0, 23', 'head', 'fjsdflksjdlkfdsjlfkjd');")
query->prepare("INSERT INTO businessweek (id, source, date, headline, body) VALUES (NULL, ?, ?, ?, ?)");
query->bindValue(0, "source");
query->bindValue(1, "date");
query->bindValue(2, "headline");
query->bindValue(3, "body");
if (query->exec()) {
tt << "Query success";
} else {
qDebug() << db.lastError();
return;
}