如何修复：Python 代码中的 BigQuery 查询

Question

我尝试在 BigQuery 查询中使用变量。语法错误。可能是什么问题？

我尝试了带有 ''' 的字符串块，但结果相同。


QUERY = ('WITH activity_data AS ('
          'SELECT user_pseudo_id, event_timestamp, event_name,' 
          'UNIX_MICROS(TIMESTAMP("'+ cohort_date_str'\", "Europe/Budapest")) AS start_day,'
          '3600*1000*1000*24*1 AS one_interval_micros'
          'FROM `events_*`'
          "WHERE _table_suffix BETWEEN \'"+ table_start_str "\' AND \'"+ table_end_str1 "\'"  
          'AND event_name IN ("z_Added","y_Added","x_Added")'
          'AND user_pseudo_id IN ('
                                    'SELECT user_pseudo_id'
                                    'FROM `events_*`' 
                                    "WHERE _table_suffix BETWEEN \'"+ table_start_str"\' AND \'"+ table_end_str2"\'"
                                    'AND event_name = "first_open"'
                                    'AND event_timestamp BETWEEN UNIX_MICROS(TIMESTAMP("'+ cohort_date_str'", "Europe/Budapest"))'
                                    'AND UNIX_MICROS(TIMESTAMP("'+ cohort_date_end_str'", "Europe/Budapest"))'

 """      
                                 )
                                )
...
 """

第 18 行语法错误：Colab 中的小箭头指向行尾的破折号。

LINE 18:
 'UNIX_MICROS(TIMESTAMP("'+ cohort_date_str'\", "Europe/Budapest")) AS start_day,'

错误截图： https://image.prntscr.com/image/rpuNg96iRom9-n7qaTvILA.png

Answer 1

您在 + cohort_date_str 之后还缺少 +。 + table_start_str 相同。等等

如何修复：Python 代码中的 BigQuery 查询

How to fix: BigQuery query in Python code

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