将数据从BigQuery数据集传输到我自己创建的BigQuery表

Question

I have a project in big query with its all datasets now I want to know how data is coming from firebase to those datasets, And I have created one new own table in bigquery. How can I push the data from any tables of dataset to my own created table? This query contains all the fields of the dataset table which I want to in my own table.

SELECT
user_dim.device_info.device_category
user_dim.device_info.mobile_brand_name  

user_dim.device_info.mobile_model_name  
user_dim.device_info.mobile_marketing_nam
FROM [in_mylo_pregnancy_baby_app_ANDROID.app_events]

Answer 1

Assuming that user_dim is an array, you can use a query such as this one. Make sure to include the #standardSQL .

#standardSQL
SELECT
  user_dim.device_info.device_category
  user_dim.device_info.mobile_brand_name  
  user_dim.device_info.mobile_model_name  
  user_dim.device_info.mobile_marketing_nam
FROM `in_mylo_pregnancy_baby_app_ANDROID.app_events`
CROSS JOIN UNNEST(user_dim) AS user_dim;

Now all of the fields will be top level columns in the resulting table. If it is not an array, then just select those fields directly:

#standardSQL
SELECT
  user_dim.device_info.device_category
  user_dim.device_info.mobile_brand_name  
  user_dim.device_info.mobile_model_name  
  user_dim.device_info.mobile_marketing_nam
FROM `in_mylo_pregnancy_baby_app_ANDROID.app_events;

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