Parsing a Simple Field with Single Level JSON data using From_field()
This is a simple example that works with flat json, meaning non-nested json hierarchies. However, you can use a combination of other functions like JSONGET() and JSONSET() to extract needed data. More examples on this to follow.
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Qlik Help: LOAD()
https://help.qlik.com/en-US/cloud-services/Subsystems/Hub/Content/Sense_Hub/Scripting/ScriptRegularStatements/Load.htm