这一篇是对前面所有关于分析函数的文章的总结：

一、统计方面：

复制代码 代码如下: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 )

具体请参考《Oracle开发之分析函数简介Over用法》和《Oracle开发之窗口函数》

二、排列方面：

复制代码 代码如下: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 ])

具体请参考《Oracle开发之分析函数(Rank, Dense_rank, row_number)》

三、最大值/最小值查找方面：

复制代码 代码如下:Min()/Max() Keep (Dense_rank First/Last [Partition by ] [Order by ])

具体请参考《Oracle开发之分析函数(Top/Bottom N、First/Last、NTile)》

四、首记录/末记录查找方面：

复制代码 代码如下:First_value / Last_value(Sum() Over ([Patition by ] [Order by ]

Rows Between Preceding And Following ))

具体请参考《Oracle开发之窗口函数》

五、相邻记录之间比较方面：

复制代码 代码如下:Lag(Sum(), 1) Over([Patition by ] [Order by ])

具体请参考《Oracle开发之报表函数》

以上就是Oracle分析函数总结的全部内容，希望能给大家一个参考，也希望大家多多支持查字典教程网。