3. "no query Unable to fetch row"错误:这可能是因为查询语句有误或者没有正确执行查询语句导致的。检查查询语句是否正确,并确保正确执行查询操作。 4. "database disk image is malformed"错误:这通常是由于数据库文件损坏导致的。尝试使用SQLite的工具修复数据库文件,或者使用备份文件恢复数据库。 如果以上方法无...
但是有一天,突然同样的代码转到另一个工程后,发现会提示“QSqlError("", "Unable to fetch row", "No query")”。 问题原因: 我的理解是可能是没有指定联接库,可能这个库有作用范围。 如果有大神知道原因的,请联系作者,十分感谢! 问题处理: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 QSql...
if(!query.exec()) qDebug() << query.lastError().text(); else return query; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 但是有一天,突然同样的代码转到另一个工程后,发现会提示“QSqlError("", "Unable to fetch row", "No query")”。 问题原因: ...
却得到:query exec failed: No query Unable to fetch row 一般,这样的信息是在说,我的SQL语句有问题,但我用终端的SQlite3尝试了,SQL查询是没有语法错误的,神马情况? 接着,我在SQlite官网上查询:https://www.sqlite.org 得到如下信息: Optional LIMIT and ORDER BY...
"no query unable to fetch row" Owner thecodemonkey86 commented Sep 11, 2020 if it's not too much to ask and your database doesn't contain any confidential information: could I get temporary read only access to it for further analysis? Author icEngineer-tech commented Sep 11, 2020 ...
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Debug模式(1)调试模式-F5 调试模式-图标是三角形加一只虫子下才会进入断点(2)运行模式-Ctrl+R 运行模式-图标是三角形无法进入断点 Release模式(1)默认Release模式下是不能调试的(2)Release模式调试需要加上: QMAKE_CXXFLAGS_RELEASE = $
db.open()) { qDebug() << "Error: Unable to open database"; return false; } QSqlQuery query; query.exec("CREATE TABLE IF NOT EXISTS mytable (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, age INTEGER NOT NULL)"); return true; } QList<QVariantMap> fetch...
新手求问,Qt中操作sqlite数据库报错,No query Unable to fetch row setInterval(函数名,1000); t: Timer = new Timer(1000, 5); t.addEventListener(TimerEvent.TIMER,函数名); t.addEventListener(TimerEvent.TIMER_COMPLETE, 函数名); t.start(); ...
Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up Reseting focus {{ message }} Stmen / QtCipherSqlitePlugin Public forked from devbean/QtCipherSqlitePlugin Notifications You must be signed in to change notification settings Fork 0 ...