"Supermarket Stock Control System" 1)What is the purpose of your project? Explain. 2)Draw your E-R diagram (Specifiy all entities-relationships-attributes). Show (explain in detail)that the database is at least in 3rd NF.  3)Explain your tables and attributes of tables. Explain your data types of attributes of tables. Why you choose that type? 4)Define your primary and foreign keys. Why they are keys? Explain.

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