Hi, did you build Qt4 with MySQL support (by default it only supports SQLite database)?
To build Qt4 with MySQL support you need to run:
configure --plugin-sql-mysql
before make/nmake.
Enrico
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How to use Mysql with Qt
Hi !
I would like to know how to use the sql class with mysql. When i tried it, I got an error that says that the drivers are not load.
I have tried a lot of tutorials on the web but none of them works.
Can someone give me the steps to load or installs the mysql function !!
Thanks to everyone
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Answers
Hi,
I already tried this but I always got an error at the compilation... See
In file included from main.cpp:46:
../../../sql/drivers/mysql
y
In file included from main.cpp:46:
../../../sql/drivers/mysql
n
mingw32-make[4]: *** [tmp/obj/debug_shared/main
mingw32-make[4]: Leaving directory `C:/Qt/4.4.1/src/plugins/s
mingw32-make[3]: *** [debug-all] Error 2
mingw32-make[3]: Leaving directory `C:/Qt/4.4.1/src/plugins/s
mingw32-make[2]: *** [sub-mysql-make_default] Error 2
mingw32-make[2]: Leaving directory `C:/Qt/4.4.1/src/plugins/s
mingw32-make[1]: *** [sub-sqldrivers-make_defau
mingw32-make[1]: Leaving directory `C:/Qt/4.4.1/src/plugins'
mingw32-make: *** [sub-plugins-make_default-
By the way the command is "configure -plugin-sql-mysql"
Thanks for your help Enricod75
It's seems to work but now when i compile i get this error !
mingw32-make[4]: Entering directory `C:/Qt/4.4.1/src/plugins/i
g++ -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo
oc -Wl,-s -mthreads -Wl -shared -Wl,--out-implib,c:\Qt\4.4
s\libqjpeg4.a -o ..\..\..\..\plugins\imagef
.Release -L"c:\Qt\4.4.1\lib" -L"c:\Qt\4.4.1\lib" tmp\obj\release_shared\qjp
esource_res.o -lQtGui4 -lQtCore4
C:\MinGW\bin\..\lib\gcc\mi
n output file ..\..\..\..\plugins\imagef
collect2: ld returned 1 exit status
mingw32-make[4]: *** [..\..\..\..\plugins\image
mingw32-make[4]: Leaving directory `C:/Qt/4.4.1/src/plugins/i
mingw32-make[3]: *** [release-all] Error 2
mingw32-make[3]: Leaving directory `C:/Qt/4.4.1/src/plugins/i
mingw32-make[2]: *** [sub-jpeg-make_default] Error 2
mingw32-make[2]: Leaving directory `C:/Qt/4.4.1/src/plugins/i
mingw32-make[1]: *** [sub-imageformats-make_def
mingw32-make[1]: Leaving directory `C:/Qt/4.4.1/src/plugins'
mingw32-make: *** [sub-plugins-make_default-
It seems that you can't access this directory:
C:\Qt\4.4.1\plugins\imagef
It is strange, becuause in my installation of Qt the directory is present.
Please ensure that the directory exists and that you have write access to it
A suggestion: if you run into problems using MingW as a compiler, you might consider switching to the free Visual C++ Express 2008, which is a fairly good compiler.
I used Visual Studio (not the express version) to compile Qt 4.4 open source, and never ran into problems.
I know for sure that Visual C++ Express also works correctly with Qt.
For more information please look at this link:
http://da-crystal.net/GCMS
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by: tinzakerPosted on 2008-09-07 at 12:40:32ID: 22412516
Up !