2017年3月23日 · #include <QtSql/QtSql> #include <QtSql/QSqlDatabase> #include <QtSql/QSqlQuery> 1 Reply Last reply . 2. V ...

2022年10月4日 · Initially I added it in my class header #include <QtSql> but it said it couldn't find the file so then I remembered I had to tell CMakeList.txt to find the package so I did that in my top project CMakeList.txt but that still told me the fldbase.h could not find the file.

2010年10月12日 · QtSql: No such file or directory main.cpp:2 ‘QSqlDatabase’ was not declared in this scope main.cpp:8 expected ‘;’ before ‘db’ main.cpp:8 ‘db’ was not declared in this scope main.cpp:9 @

2019年6月23日 · You can have a lib that uses QtSql, and an app that just uses this lib. But if you use QtSql directly in your app, you have to add the module there too. Qt has to stay free or it will die.

2023年3月8日 · This topic has been deleted. Only users with topic management privileges can see it.

2022年9月1日 · @PythonQTMarlem said in Using QtSql.QSqlQuery() and where to search for a string in a table: Yes, I'm missing the quotation marks before and after suchstring. I know Java, C# and Python

2017年7月14日 · Hello everyone! I am a new user of Qt and I am trying to connect to a MS SQL db. I am using Qt 5.9.1 and Qt Creator 4.3.1 On a Windows 10 64-bit environment...

2018年8月8日 · QTSql Read row by row. Scheduled Pinned Locked Moved Solved General and Desktop 17 Posts 7 Posters 3.7k ...

2022年4月25日 · Ok, the video tutorial I am trying to follow is slightly outdated (2017) but the goal is the same: This is the tutorial I am trying to follow: youtube tutorial

2011年11月15日 · To use a SQLite database: add the sql module to your .pro file (QT += sql).; include <QtSql/QSqlDatabase>; use QSqlDatabase::addDatabase("QSQLITE") to get a database object