How to transfer products, orders, categories and reviews to opencart 3 correctly?

Question

opencart

Hello. Such a task - you need to transfer goods, orders, categories and reviews from the store to OC (I don’t know which version, access only to the database). I have a question, has the structure of the tables somehow changed in versions? And yet, will there be problems if I manually clear the tables oc_category (and derivatives), oc_product, etc.? And yet, in some tables I added new columns. It's OK?

Answer 1

The structure either changed slightly or did not change, but you can compare it with your hands