我有一个表格日期和价格。下面给出了表格结构
Id |Date |Price
---------------------------
1 |2012-1-1 |300
1 |2012-2-1 |300
1 |2012-3-1 |300
1 |2012-4-1 |300
1 |2012-5-1 |300
1 |2012-6-1 |300
1 |2013-1-1 |300
1 |2013-2-1 |300
1 |2013-3-1 |300
1 |2013-4-1 |300
1 |2013-5-1 |300
1 |2013-6-1 |300
但我只想要相应的日期月份及其价格。如果表格中没有月份，我想添加月份名称，价格为零
Month|Price
--------------
January |300
February|300
March |300
April |300
May |300
June |300
July |0
August |0
September|0
October |0
November|0
December|0
January |300
February|300
March |300
April |300
May |300
June |300
July |0
August |0
September|0
October |0
November|0
December|0
有人怎么做？