Hive中的Oracle ratio_to_report

Question

Hive中有相同的功能吗？

oracle中的atio_to_report

SELECT last_name, salary, RATIO_TO_REPORT(salary) OVER () AS rr
   FROM employees
   WHERE job_id = 'PU_CLERK';

LAST_NAME                     SALARY         RR
------------------------- ---------- ----------
Khoo                            3100 .223021583
Baida                           2900 .208633094
Tobias                          2800 .201438849
Himuro                          2600  .18705036
Colmenares                      2500 .179856115

Answer 1

Hive中没有此类功能。但是，您可以利用可用的分析功能执行相同的操作。

SELECT last_name, salary, salary/SUM(salary) OVER () AS rr 
FROM employees
WHERE job_id = 'PU_CLERK'

要获取每个job_id的比率，请使用

SELECT last_name, salary, salary/SUM(salary) OVER (PARTITION BY job_id) AS rr 
FROM employees