Dear my friends... I move forward to getting to know more about qt in database application development. I tried to make a very simple database application qith QTable. I have made the database connection successfully. I found no error. If I click on "connect" it can connect successfully because the connection name move to the left hand column. The documentation in help menu said it is so. Compiled successfully. but if I run the compiled code, i found this error message as a prompt window comes: " An error occurred while accessing the database ". And the error message on the linux console where I executed "./book" are under below: " patrixlinux@patrix:~/arsip/proyek/qt/book> ./book QSqlCursor::setName: unable to build record, does 'author' exist? QSqlRecord::field: index out of range: 0 QSqlRecord::position: unable to find field forename QSqlRecord::field: index out of range: -1 QSqlRecord::field: index out of range: 1 QSqlRecord::position: unable to find field surname QSqlRecord::field: index out of range: -1 QSqlCursor::setName: unable to build record, does 'author' exist? patrixlinux@patrix:~/arsip/proyek/qt/book> " the author table really exists. should do choosing the database name as I do usually on PHP+MySQL ( mysql_select_db("192.168.23.21","patrix", "perjaka"); )? I have tested to connect to my mysql server with the same hostname, username and password and it's OK. I also can do select query. I did testing with mysql-client (mysql -h 192.168.23.21 -u patrix -p) Please tell me where my mistake. Thank you very much in advance. ps: Here is what I've done underbelow: patrixlinux@patrix:~/arsip/proyek/qt/book> ls book.db book.pro depanform.ui depanform.ui~ main.cpp patrixlinux@patrix:~/arsip/proyek/qt/book> qmake -o Makefile book.pro patrixlinux@patrix:~/arsip/proyek/qt/book> make /usr/lib/qt3/bin/uic depanform.ui -o .ui/depanform.h g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/main.o main.cpp /usr/lib/qt3/bin/uic depanform.ui -i depanform.h -o .ui/depanform.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/depanform.o .ui/depanform.cpp /usr/lib/qt3/bin/moc .ui/depanform.h -o .moc/moc_depanform.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/moc_depanform.o .moc/moc_depanform.cpp g++ -o book .obj/main.o .obj/depanform.o .obj/moc_depanform.o -L/usr/lib/ -L/usr/lib/qt3/lib/ -L/usr/X11R6/lib/ -lqt -lXext -lX11 -lm patrixlinux@patrix:~/arsip/proyek/qt/book> ls Makefile book book.db book.pro depanform.ui depanform.ui~ main.cpp patrixlinux@patrix:~/arsip/proyek/qt/book> ./book QSqlCursor::setName: unable to build record, does 'author' exist? QSqlRecord::field: index out of range: 0 QSqlRecord::position: unable to find field forename QSqlRecord::field: index out of range: -1 QSqlRecord::field: index out of range: 1 QSqlRecord::position: unable to find field surname QSqlRecord::field: index out of range: -1 patrixlinux@patrix:~/arsip/proyek/qt/book> cat main.cpp #include <qapplication.h> #include "depanform.h" int main( int argc, char ** argv ) { QApplication a( argc, argv ); depanForm w; w.show(); a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) ); return a.exec(); } patrixlinux@patrix:~/arsip/proyek/qt/book> cat book.pro unix { UI_DIR = .ui MOC_DIR = .moc OBJECTS_DIR = .obj } TEMPLATE = app LANGUAGE = C++ CONFIG += qt warn_on release SOURCES += main.cpp FORMS = depanform.ui DBFILE = book.db patrixlinux@patrix:~/arsip/proyek/qt/book> cat depanform.ui <!DOCTYPE UI><UI version="3.3" stdsetdef="1"> <class>depanForm</class> <widget class="QDialog"> <property name="name"> <cstring>depanForm</cstring> </property> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>600</width> <height>480</height> </rect> </property> <property name="caption"> <string>Halaman depan</string> </property> <widget class="QDataTable"> <column> <property name="text"> <string>Forename</string> </property> <property name="field"> <string>forename</string> </property> </column> <column> <property name="text"> <string>Surname</string> </property> <property name="field"> <string>surname</string> </property> </column> <property name="name"> <cstring>dataTable1</cstring> </property> <property name="geometry"> <rect> <x>90</x> <y>20</y> <width>390</width> <height>220</height> </rect> </property> <property name="sorting"> <bool>true</bool> </property> <property name="confirmDelete"> <bool>true</bool> </property> <property name="database" stdset="0"> <stringlist> <string>(default)</string> <string>author</string> </stringlist> </property> </widget> </widget> <pixmapinproject/> <layoutdefaults spacing="6" margin="11"/> </UI> patrixlinux@patrix:~/arsip/proyek/qt/book> cat book.db <!DOCTYPE DB><DB version="1.0"> <connection> <property name="name"> <string>(default)</string> </property> <property name="driver"> <string>QMYSQL3</string> </property> <property name="database"> <string>book</string> </property> <property name="username"> <string>root</string> </property> <property name="hostname"> <string>192.168.23.21</string> </property> <property name="port"> <string>-1</string> </property> <table> <property name="name"> <string>author</string> </property> <field> <property name="name"> <string>id</string> </property> </field> <field> <property name="name"> <string>forename</string> </property> </field> <field> <property name="name"> <string>surname</string> </property> </field> </table> <table> <property name="name"> <string>book</string> </property> <field> <property name="name"> <string>id</string> </property> </field> <field> <property name="name"> <string>title</string> </property> </field> <field> <property name="name"> <string>price</string> </property> </field> <field> <property name="name"> <string>authorid</string> </property> </field> <field> <property name="name"> <string>notes</string> </property> </field> </table> <table> <property name="name"> <string>sequence</string> </property> <field> <property name="name"> <string>tablename</string> </property> </field> <field> <property name="name"> <string>sequence</string> </property> </field> </table> </connection> </DB> patrixlinux@patrix:~/arsip/proyek/qt/book> __________________________________ Do you Yahoo!? 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