am attaching database
2 tables categories and products-
If you open categories - you will see a plus sign and be able to see record related from products table.
I created categories2 table and products2 table and tried to do same thing-
( I usually create joins ( relationships) in queries)
If you open categories2 you will see plus sign - but it gives error "the expression is typed incorrectly or too complex...."
can you tell me how I can make these 2 tables like categories and products?