Qt-interest Archive, August 2007
(Qt4.1.0,eclipse CDT,mac)no database access
Message 1 in thread
Hello,
I wonder why there is an error in the following program:
#include <QMessageBox>
#include <QtGui>
#include <QSqlDatabase> *
#include <QtSql> *
int main(int argc,char* argv[]){
QSqlDatabase db; *
db=QSqlDatabase::addDatabase("QMYSQL"); *
db.setHostName("localhost");
db.setDatabaseName("mysql");
db.setUserName("root");
db.setPassword("root");
if (!db.open())
QMessageBox::critical(0,"Database error",db.lastError().text());
}
the errors concern the lines where there is a star(line 3:"no such file
or directory"); it seems clear that there is a problem concerning the
importation of the QtSql library; but the library QtSQL is declared in
the include folder, like e.g. QtGui (present in the program above): it
should be recognized.
Have you got an idea of what's going wrong?
lolveley.
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Message 2 in thread
lolveley a écrit :
> Hello,
>
> I wonder why there is an error in the following program:
>
> #include <QMessageBox> #include <QtGui>
> #include <QSqlDatabase> *
> #include <QtSql> *
>
> int main(int argc,char* argv[]){
> QSqlDatabase db; *
> db=QSqlDatabase::addDatabase("QMYSQL"); *
> db.setHostName("localhost");
> db.setDatabaseName("mysql");
> db.setUserName("root");
> db.setPassword("root");
> if (!db.open())
> QMessageBox::critical(0,"Database error",db.lastError().text());
> }
>
> the errors concern the lines where there is a star(line 3:"no such
> file or directory"); it seems clear that there is a problem concerning
> the importation of the QtSql library; but the library QtSQL is
> declared in the include folder, like e.g. QtGui (present in the
> program above): it should be recognized.
>
>
>
>
> Have you got an idea of what's going wrong?
>
> lolveley.
>
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>
>
hello,
a short answer for this issue: I have found the solution: I added the
line QT += sql in the .pro file of the project, with the purpose of
using the databases, and IT WORKED!
lolveley.
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[ signature omitted ]
