我有一个名为Product的表,它显示如下数据:
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l TYPE l PERIOD l BALANCE l
l Auto l 2015 l 5 l
l Car l 2015 l 2 l
l Bus l 2015 l 45 l
l Auto l 2016 l 2 l
l Car l 2016 l 6 l
l Bus l 2016 l 50 l
l Auto l 2017 l 12 l
l Car l 2017 l 16 l
l Bus l 2017 l 10 l
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我需要查询此表,以便结果基于类似于下面的年份:
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l TYPE l BALANCE 2015 …