oracle 分析函数 - 总结

Sum() Over ([Partition by ] [Order by ]) Sum() Over ([Partition by ] [Order by ] Rows Between Preceding And Following) Sum() Over ([Partition by ] [Order by ] Rows Between Preceding And Current Row) Sum() Over ([Partition by ] [Order by ] Range Between Interval ‘‘ ‘Day‘ Preceding And Interval ‘‘ ‘Day‘ Following ) 二、排列方面： Rank() Over ([Partition by ] [Order by ] [Nulls First/Last]) Dense_rank() Over ([Patition by ] [Order by ] [Nulls First/Last]) Row_number() Over ([Partitionby ] [Order by ] [Nulls First/Last]) Ntile() Over ([Partition by ] [Order by ]) 三、最大值/最小值查找方面： Min()/Max() Keep (Dense_rank First/Last [Partition by ] [Order by ]) 四、首记录/末记录查找方面： First_value / Last_value(Sum() Over ([Patition by ] [Order by ] Rows Between Preceding And Following )) 五、相邻记录之间比较方面： Lag(Sum(), 1) Over([Patition by ] [Order by ])

 

oracle 分析函数 - 总结

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