public void updateSessions()
        {
            DataTable table = AccessDatabaseUtilities.getDataTable(m_databaseFileName, Constants.TableName.KnockoutSessions);

            foreach (DataRow dRow in table.Rows)
            {
                List <string> removeColumns    = null;
                int           roundNumber      = (int)dRow["Round_Number"];
                int           numberOfSessions = (int)dRow["Number_Of_Sessions"];
                if (numberOfSessions > m_oldNumberOfSessions[roundNumber])
                {
                    List <DatabaseField> fields = new List <DatabaseField>();
                    for (int i = m_oldNumberOfSessions[roundNumber] + 1; i <= numberOfSessions; ++i)
                    {
                        fields.Add(new DatabaseField("Session_" + i + "_Score", "NUMBER"));
                    }
                    AccessDatabaseUtilities.addColumn(m_databaseFileName, Constants.TableName.KnockoutScores + "_" + roundNumber, fields);
                }
                else if (m_oldNumberOfSessions[roundNumber] > numberOfSessions)
                {
                    removeColumns = new List <string>();
                    List <DatabaseField> fields = new List <DatabaseField>();
                    for (int i = numberOfSessions + 1; i <= m_oldNumberOfSessions[roundNumber]; ++i)
                    {
                        fields.Add(new DatabaseField("Session_" + i + "_Score", "NUMBER"));
                        removeColumns.Add("Session_" + i + "_Score");
                    }
                    AccessDatabaseUtilities.dropColumn(m_databaseFileName, Constants.TableName.KnockoutScores + "_" + roundNumber, fields);
                }
                m_oldNumberOfSessions[roundNumber] = numberOfSessions;
                AccessDatabaseUtilities.loadDatabaseToTable(m_databaseFileName, Constants.TableName.KnockoutScores + "_" + roundNumber, "", removeColumns);
            }
            AccessDatabaseUtilities.saveTableToDatabase(m_databaseFileName, Constants.TableName.KnockoutSessions);
        }