同一数据集上不同级别的SQL组

Question

我有以下数据集，希望创建不同的组来计算名称下值的出现。

有：（县在字符串中）

name   state  county 
apple   MD      1
apple   DC      1
pear    VA      1
pear    VA      2
pear    CA      5
peach   CO      3
peach   CO      3
peach   CO      2
peach   CO      2

想要：

name   state  county freq_name  freq_state  freq_county
apple   MD      1     2            1            2
apple   DC      1     2            1            2
pear    VA      1     3            2            3
pear    VA      2     3            2            3
pear    CA      5     3            1            3
peach   CO      3     4            4            2
peach   CO      2     4            4            2

我相信，通过SQL，在分区上将允许按不同级别进行计数类似于：

count(name) over (partition by name) as freq_name,
count(name) over (partition by state) as freq_state,
count(name) as freq_county
from have
group by name,state, county;

出于某种原因，这段代码没有给我正确的freq_name计数。

任何帮助将不胜感激！

Answer 1

对于freq_name，使用count（*）代替count（name）

count(*) over (partition by name) as freq_name,
count(name) over (partition by state) as freq_state,
count(name) as freq_county
from have
group by name,state, county;