How do I query a nested JSON in SQL?

How do I query a nested JSON in SQL?

How to extract values from a nested JSON field in SQL

1. Postgres. Use the ->> operator to extract a value as text, and the -> to extract a JSON object: select my_json_field ->> ‘userId’, my_json_field -> ‘transaction’ ->> ‘id’, my_json_field -> ‘transaction’ ->> ‘sku’ from my_table;
2. Redshift.
3. MySQL.

How do I read a complex JSON file in Python?

Start by importing the json library. We use the function open to read the JSON file and then the method json. load() to parse the JSON string into a Python dictionary called superHeroSquad. That’s it!

How do you read complex JSON?

1. Step1:
2. Step2: Hold the “response” in a JSON Object.
3. Step3: Drill down further and store the “body” and “patient” in JSON Object.
4. Step4: “patient” tag is in a Array hence we will store it in Array Object.
5. Step5: Next we will fetch the “patientID”
6. OutPut: (as printed in console)

How to query JSON with complex JSON path?

This sample loads JSON and then queries values from it using SelectToken (String) with a JSONPath query.

How does JSON _ query filter work in Ansible?

Here is where Ansible’s json_query filter comes in. With JMESPath we can search a list of objects for a key value pair but return the value of another key in the same object. In practical terms for this example, we can search the list of objects for the object where output_key = ceph_mon_management_addresses and return the value of output_value.

Which is the best tool for JSON parsing?

JMESPath is a powerful tool for simple JSON parsing, we could have achieved the same results with loops and complex Jinja templates but instead we have something that is short, simple and easy to look at.

How to parse complex JSON with Ansible and jmespath?

Luckily, due to JSON’s popularity, it has wide support and there are many packages, like JMESPath, available to help parse complex JSON structures. Frequently when I am deploying or updating infrastructure using Ansible I have to parse JSON results from a cloud provider or the output of a command like kubectl when interacting with Kubernetes.