bigquery中的listagg函数替代

Question

我想获取以下数据集：

Description                ShortDescription           Result
Actions to look for a job  job_search_action          Dont' look actively
Actions to look for a job  job_search_action          Drop off CV's
Actions to look for a job  job_search_action          Job ads
Actions to look for a job  job_search_action          N/A

并获得以下结果：

Description                ShortDescription           Result
Actions to look for a job  job_search_action          Don't look actively, Drop 
                                                      off CV's, Job ads, N/A

biquery的任何帮助都没有listagg函数

Answer 1

如果要使用类似列表的结构（数组），可以将STRING_AGG()用于csv或ARRAY_AGG()。然后Warning: Section [RegKeys] has no data Warning: Section [DefaultInstall] key "AddReg" - there are no section entries to process Error: CAB file "C:\VB2008PRO\Stock System v4.0.6764.19135\CABProject\Release\CABProject.CAB" could not be created 其他两列。

Answer 2

with cte as (select 'Actions to look for a job' as Description,  'job_search_action' as ShortDescription, 'Dont\' look actively' as Result
union all
select 'Actions to look for a job' as Description,  'job_search_action' as ShortDescription, 'Drop off CV\'s' as Result
union all
select 'Actions to look for a job' as Description,  'job_search_action' as ShortDescription, 'Job ads' as Result
union all
select 'Actions to look for a job' as Description,  'job_search_action' as ShortDescription, 'N/A' as Result)

select Description, ShortDescription, string_agg(Result, ', ') from cte
group by 1,2

返回：

+-----+---------------------------+-------------------+--------------------------------------------------+--+
| Row |        Description        | ShortDescription  |                       f0_                        |  |
+-----+---------------------------+-------------------+--------------------------------------------------+--+
|  1  | Actions to look for a job | job_search_action | Dont' look actively, Drop off CV's, Job ads, N/A |  |
+-----+---------------------------+-------------------+--------------------------------------------------+--+