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RecordSet.cpp

//
// RecordSet.cpp
//
// $Id: //poco/1.3/Data/samples/RecordSet/src/RecordSet.cpp#3 $
//
// This sample demonstrates the Data library.
//
// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.


#include "Poco/SharedPtr.h"
#include "Poco/Data/SessionFactory.h"
#include "Poco/Data/Session.h"
#include "Poco/Data/RecordSet.h"
#include "Poco/Data/Column.h"
#include "Poco/Data/SQLite/Connector.h"
#include <iostream>


using namespace Poco::Data;


struct Person
{
      std::string name;
      std::string address;
      int         age;
};


int main(int argc, char** argv)
{
      // register SQLite connector
      Poco::Data::SQLite::Connector::registerConnector();
      
      // create a session
      Session session("SQLite", "sample.db");

      // drop sample table, if it exists
      session << "DROP TABLE IF EXISTS Person", now;
      
      // (re)create table
      session << "CREATE TABLE Person (Name VARCHAR(30), Address VARCHAR, Age INTEGER(3))", now;
      
      // insert some rows
      session << "INSERT INTO Person VALUES('Bart Simpson', 'Springfield', 12)", now;
      session << "INSERT INTO Person VALUES('Lisa Simpson', 'Springfield', 10)", now;
            
      // a simple query
      Statement select(session);
      select << "SELECT * FROM Person";
      select.execute();

      // create a RecordSet 
      RecordSet rs(select);
      std::size_t cols = rs.columnCount();
      // print all column names
      for (std::size_t col = 0; col < cols; ++col)
      {
            std::cout << rs.columnName(col) << std::endl;
      }
      // iterate over all rows and columns
      bool more = rs.moveFirst();
      while (more)
      {
            for (std::size_t col = 0; col < cols; ++col)
            {
                  std::cout << rs[col].convert<std::string>() << " ";
            }
            std::cout << std::endl;
            more = rs.moveNext();
      }

      return 0;
}

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