New to Android, migrating DB suggestions?


I have a Samsung On5 that seems to work well, but I am considering a major move of my entire office system from an MS Access database for my customers to a tablet to update my customer list in the field.
It appears that just about any tablet should work, but I like inexpensive (to avoid the shock of theft of an office system).
Samsung seems to have the preferred tablets at reasonable prices. Does anyone have any database suggestions for a beginner in Android?