First and second half year sum display : Using Oracle i want to write a query which display sum of first and second half year data.<br>

If my data search condition like 2016/02 ~ 2017/12.i want to display result like below.<br>
1.Sum of price from 2016/01/01 ~ 2016/06/30 - First half year row<br>
2.Sum of price from 2016/07/01 ~ 2016/13/31 - Second half year row<br>
3.Sum of price from 2017/01/01 ~ 2017/06/30 - First half year row<br>

have any suggestion ?
