Questions
1. Explain the relationship between the "Product" and "Product_Category" entities from the above diagram.
The given schema, there is a relationship through a foreign key. as "ALTER TABLE product ADD FOREIGN KEY (category_id) REFERENCES product_category(id);"
Acc to this statement a foreign key constraint on the "Product" table, is linking the category_id column in the "Product" table to the id column in the "Product_Category" table.So this relationship signifies that each product in the "Product" table is closely associated to a specific category defined in the "Product_Category" table. This relationship allows us to organize and categorize products in a structured manner, making it easier to query and manage data related to products and their respective categories.
2. How could you ensure that each product in the "Product" table has a valid category assigned to it?
ALTER TABLE product ADD FOREIGN KEY (category_id) REFERENCES product_category(id);