Table ResultSet crashes when usng OCCI

[mdb]

I am using Oracle v9 on Win XP (Visual C++ v6). Once I get the first record, the next call to next() crashes. But it only crashes if I called getString(). getInt() is OK on multiple iterations:

#include "stdafx.h"
#include


#include
#include
using namespace oracle:cci;
using namespace std;

class occicoll
{
private:

Environment *env;
Connection *conn;
Statement *stmt;
string tableName;
string typeName;

public:

occicoll (string user, string passwd, string db)
{
env = Environment::createEnvironment (Environment::OBJECT);
conn = env->createConnection (user, passwd, db);
}

~occicoll ()
{
env->terminateConnection (conn);
Environment::terminateEnvironment (env);
}


// Displaying all the rows of the table
void displayAllRows ()
{

ResultSet::Status status;
char num1[10];
string all;

cout << "Displaying all the rows of the table" << endl;
stmt = conn->createStatement (
"SELECT * FROM SCOTT.EMP1");

ResultSet *rs = stmt->executeQuery();
try{
while (rs->next())
{
int empno = rs->getInt(1);
// string job = rs->getString(3);
// int mngno = rs->getInt(4);
// string hdate = rs->getTimestamp(5);
int salary = rs->getInt(6);
// int comm = rs->getInt(7);
// int dept = rs->getInt(8);

all = "";
itoa(empno, num1, 10);
all = all + num1;
cout << all << endl;



}
}catch(SQLException ex)
{
cout<<"Exception thrown for displayRow"< cout<<"Error number: "<< ex.getErrorCode() << endl;
cout< }
stmt->closeResultSet (rs);
conn->terminateStatement (stmt);

} // End of displayAllRows()



};//end of class occicoll

int main(int argc, char* argv[])
{
string user = "SYSTEM";
string passwd = "CATS01";
string db = "";

try
{

occicoll *demo = new occicoll (user, passwd, db);

cout << "Displaying all rows before the operations" << endl;
demo->displayAllRows ();


delete (demo);
cout << "occicoll - done" << endl;
}catch (SQLException ea)
{
cerr << "Error: " << ea.getMessage () << endl;
}

return 0;
}