public boolean insert(SSHNewCombination sshNewCombination) {
		String sql = "insert into " + TABLE + " values(?,?,?,?) ON DUPLICATE KEY UPDATE num=num+1";
		Object[] args = new Object[] { 
				sshNewCombination.getId(), 
				sshNewCombination.getLength(),
				sshNewCombination.getCombination(),
				sshNewCombination.getNum()
		};
		int[] argTypes = new int[] { 
				Types.VARCHAR,
				Types.INTEGER,
				Types.VARCHAR,
				Types.INTEGER,
		};
		int n = 0;
		n = this.getJdbcTemplate().update(sql, args, argTypes);
		return n > 0 ? true : false;
	}