google-big-queryHow can I use Google Big Query to query JSON data?

Google BigQuery is a serverless, highly scalable, and cost-effective cloud data warehouse that enables you to query large datasets stored in JSON format. To query JSON data using BigQuery, you can use the JSON_EXTRACT function. This function allows you to extract values from a JSON string.

For example, to extract the name field from the following JSON string, you can use the following code:

SELECT JSON_EXTRACT(data, '$.name') AS name
FROM `mydataset.mytable`

The output of the above query would be:

name
John Doe

The JSON_EXTRACT function takes two parameters:

1. The JSON string to extract from
2. The path to the value to be extracted

The path is a string of dot-separated keys that identify the value to be extracted. In the above example, the path is $.name, which indicates that the value of the name field should be extracted.

For more information on the JSON_EXTRACT function, see the BigQuery documentation.

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