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: 
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?([