Sql concept error solving

Hi,
I am doing programing in Qt4.3.3 Integrated with VS2005.
I have one doubt while doing the basic Sql program i am geeting these errors.
Can you tell me any one..Please..

I Added code & Errors in below

------------------connection.h-----------------------------

Code:

---

#ifndef CONNECTION_H
#define CONNECTION_H
 
#include <QMessageBox>
#include <QSqlDatabase>
 
inline bool createConnection()
{
    QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
	db.setDatabaseName(":memory:");
    if (!db.open()) {
        QMessageBox::warning(0, QObject::tr("Database Error"),
                             db.lastError().text());
        return false;
    }
    return true;
}/*

---

------------------main.cpp-------------------

Code:

---

#include <QtGui/QApplication>
#include <QtSql>
#include "connection.h"
#include "da.h"
 
int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	if (!createConnection())
            return 1;
	DA w;
	w.show();
	return a.exec();
}

---

-----------------Errors--------------

Quote:

---

C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C2144: syntax error : 'int' should be preceded by ';'
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C2470: 'QSqlTableModel' : looks like a function definition, but there is no parameter list; skipping apparent body
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(53) : error C2504: 'QSqlTableModel' : base class undefined
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2143: syntax error : missing ';' before '*'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2433: 'QSqlRelationalTableModel::QSqlTableModel' : 'virtual' not permitted on data declarations
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : warning C4183: 'relationModel': missing return type; assumed to be a member function returning 'int'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(83) : error C2065: 'd_ptr' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'QSqlTableModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'childModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (58) : error C2227: left of '->fieldIndex' must point to class/struct/union/generic type
type is ''unknown-type''
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (72) : fatal error C1903: unable to recover from previous error(s); stopping compilation

---

Is there an #endif directive at the end of connection.h?

Hi,
I for got to copied that line.I have the line of code.please check the code once again..
Thank you for giving reply.




Regards,
Tavit.

Are you able to compile it with Qt Command Prompt?

Hi,
Thank you for reply,i compiled in Qt command prompt.That time i am not getting any errors.Is it require Sqlite plugin???..in program i am not geetting any errors.while running the project i am getting errors following like...

Quote:

---

error C2144: syntax error : 'int' should be preceded by ';'
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C2470: 'QSqlTableModel' : looks like a function definition, but there is no parameter list; skipping apparent body
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(53) : error C2504: 'QSqlTableModel' : base class undefined
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2143: syntax error : missing ';' before '*'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2433: 'QSqlRelationalTableModel::QSqlTableModel' : 'virtual' not permitted on data declarations
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : warning C4183: 'relationModel': missing return type; assumed to be a member function returning 'int'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(83) : error C2065: 'd_ptr' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'QSqlTableModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'childModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (58) : error C2227: left of '->fieldIndex' must point to class/struct/union/generic type
type is ''unknown-type''
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (72) : fatal error C1903: unable to recover from previous error(s); stopping compilation
dasdatabase.cpp
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C2144: syntax error : 'int' should be preceded by ';'
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqltablemodel.h(37) : error C2470: 'QSqlTableModel' : looks like a function definition, but there is no parameter list; skipping apparent body
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(53) : error C2504: 'QSqlTableModel' : base class undefined
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2143: syntax error : missing ';' before '*'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C2433: 'QSqlRelationalTableModel::QSqlTableModel' : 'virtual' not permitted on data declarations
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(71) : warning C4183: 'relationModel': missing return type; assumed to be a member function returning 'int'
C:\Qt\4.3.3\include\QtSql/qsqlrelationaltablemodel.h(83) : error C2065: 'd_ptr' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'QSqlTableModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (52) : error C2065: 'childModel' : undeclared identifier
c:\qt\4.3.3\include\qtsql\qsqlrelationaldelegate.h (58) : error C2227: left of '->fieldIndex' must point to class/struct/union/generic type

---

could you help me...i am stuck with this problem..

Quote:

---

Originally Posted by Tavit

.while running the project i am getting errors following like...

---

Huh? They are compilation errors.