You will have lot to learn, Start with reading the documentation,
http://ai2.appinventor.mit.edu/reference/components/storage.html#TinyDB
doing some tutorials, and some specific ones for tinyDb, for example this one:https://appinventor.mit.edu/explore/ai2/colored-dots
Then, find out how to ask questions here:
How to ask a question (open new topic)
Cheers, Ghica.
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