Using JSON is a lot easier than using XML. Manually editing a document is much more manageable and adjusting the structure is quick and easy. It is also easier to create an invalid JSON document without knowing it.
A lot of customers are confused about Db2 for z/OS JSON capability and Native REST services. They think they are the same thing. In fact, they are completely different. In this article, I will describe the difference and share the questions I have been asked many times.
Db2 12 has been available for over 2 years and many customers have migrated to Db2 12 Function level 500. Function Level (FL) 500 enables all the new Db2 12 base capability. However, changes are needed at the client, and potentially at the server, to exploit FL 501 and above.