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Monday, April 11 • 3:30pm - 8:00pm
DEEP DIVE: Generating and Consuming JSON Documents with SQL (Workshop)

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DEEP DIVE: Generating and Consuming JSON Documents with SQL (Workshop)
Level: Advanced
JSON (Java Script Online Notation) is a data exchange format like XML, however JSON is simpler, less verbose, and can be parsed faster than XML. JSON becomes more and more important especially when data is exchanged by RESTful web services. The use of XML declines in favor of JSON. With Release 7.3 TR 3, scalar and aggregate functions were integrated into SQL for generating JSON objects, arrays, and for combining JSON components into complete documents.

The JSON_TABLE tables function for consuming JSON data was introduced with Release 7.3 TR 1.With the JSON_TABLE table function, JSON documents can be parsed, converted into a relational representation, and data picked specifically. Additional scalar functions allow SQL to directly access JSON documents located within the IFS (Integrated File System) or in source physical file members. Last but not least, IBM provides SQL http-functions for getting access to web services. In combination with the JSON_TABLE function, the JSON answers returned by web services can be consumed within a SELECT-Statement.

Learning Objectives:
  • Get an introduction into JSON basics. Learn how JSON objects and arrays can be generated, concatenated, or nested and composed into JSON documents.
  • Discover how JSON documents, located in either the IFS or a column of a table or JSON answers returned by web services, can be parsed with the JSON_TABLE table function, converted into a relational representation, and data specifically selected.
  • You’ll also get an overview of  the new http-functions and how to use them for getting access to web services.
Developers and users who are experienced in SQL Queries and want to create JSON data with SQL. Developers and users who need to process JSON documents located in either SQL tables or the IFS or JSON answers returned by web services. Everybody who simply wants to enhance his SQL know-how.

avatar for Birgitta Hauser

Birgitta Hauser

Database and Software Architect, Birgitta Hauser - Modernization - Education - Consulting on IBM i
Birgitta Hauser worked on the IBM i and its predecessors since 1992. She graduated with a business economics diploma, and started programming on the AS/400 in 1992. She worked and works as traditional RPG Programmer but also as Database and Software Engineer, focusing on IBM  i application... Read More →

Monday April 11, 2022 3:30pm - 8:00pm EDT