Oralce水平分表现有表再进行拆分
接这一篇《Oralce水平分表》，发现按照上面水平拆表把表按照年存储到每个分区表中。由于业务推广后按照年分表数据量还是很大。那
接这一篇《Oralce水平分表》，，发现按照上面水平拆表把表按照年存储到每个分区表中。由于业务推广后按照年分表数据量还是很大。那么我们考虑能不能再年表中在进行拆分。
下面介绍一下拆分步骤。
原表结构（只看分区情况)：
从上面图我们可以看出如WLKP_FP_DATA_2012 分区存储在表空间WLKP_FP_DATA_2012里面
那么时间过半了我们统计半年数据发现WLKP_FP_DATA_2012 分区表数据也很多
我们考虑将WLKP_FP_DATA_2012 按照季度拆分
执行以上语句将WLKP_FP_DATA_2012 按照季度拆分四个子分区表中WLKP_FP_DATA_2012_1、WLKP_FP_DATA_2012_2、WLKP_FP_DATA_2012_3、WLKP_FP_DATA_2012_4
注：最后一个分区时间为什么是2012-12-31呢因为上面拆分WLKP_FP_DATA_2012整年的截止时间是2013-01-01
如果时间是2013-01-01会报错
拆分后的分区如下：
和上面对比我可以看到我们将WLKP_FP_DATA_2012 按照季度拆分出子的分区表，注意以上还是在当前WLKP_FP_DATA_2012表空间下面拆分的
通过上面截图我们看到该分区表只扩展到2013年，那么2014年呢2015年呢我们怎么办呢？
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