Python - Database for Machine Learning application

[braveYug]

Hello Guys,

I am planning to create a ML application for predictive maintenance with Python. To create this app I will collect data (lots of) from machine. My problem or rather confusion is that which database shall I use for this kind of application, since I am creating this app for first time and I don't want to end up in dead zone later.
Either it should be SQL or NoSQL?
SQL has the benefit that I can physically check the data ( in case its needed) but at the same time No SQL has benefit of 'No schema'.

So can anyone please guide me to choose correct database type for this kind of application.

Thanks a lot