Practically, to insert data into the tables (Customer, Inventory, Orders, and Vendor) from the database created and named COSC420_project1 (as shown on the very first screenshot at the beginning), I have proceeded by inserting data first into the table CUSTOMER, and immediately I did the VENDOR one after. Thirdly, I filled out the INVENTORY table, and lastly I ended up with the ORDERS table. The purpose of doing this was in respect to the References I had to follow, along with the primary and foreign key rules. In addition, I was forced to proceed to some adjustments (attribute types) such as replacing number by integer type or number (a, b) by decimal (a, b). Another adjustment made was changing DATE type by VARCHAR type to accommodate with
