I have some beginner questions as I am working through the InterSystems Cache learning path:
- Where I work, we us Cache, but we often learning about and train on MUMPS. No one really talks about or mentions MUMPS here, but my understanding is that ObjectScript is basically MUMPS plus whatever new things InterSystems put on top of it. Is that a fair assessment?
- The training online often refers to IRIS. We don't use IRIS, but we use globals to store data. I suppose I'm just confused on the difference between Cache, Zen, IRIS and other products as they all seem to do similar things.
- If I have a global available in a certain namespace, can I use InterSystems SQL to query those globals?
- How do existing globals and creating classes work? Like I have a Person global right now. Can I turn that into a class and manipulate the data that way