Organize the products of 1000 stores in ONE SINGLE TABLE!

[toxicmix]

Good evening... Let me summarize the problem right away; 1) We have 1000 stores 2) Each store has 100 products 3) Each product has 10 parameters (columns) (name, price, stock status, description, etc.) How can this complex structure be organized in the SIMPLEST, MOST LOGICAL, MOST USER-FRIENDLY way WITHOUT creating 1000 separate tables for each of the 1000 Businesses (This is already impossible!)? I am not familiar with json etc. yet... FOCUSING ON THE OPTION TO SAVE TO A DATABASE, WHAT CAN BE DONE? Thank you in advance...