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Please find the attached and give me your idea about the attached database, (since I can not attach access file, please change the file extension to database.mdb when open)

*Very brief explanation is fine**

(a) What's wrong with the way in which this database has been designed?
(b) What's missing?
(c) What mistakes did the designer make when designing it?
(d) If you were designing the file from scratch, what would you do differently?
(e) What won't users be able to do with this file, given the way in which it's

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(a) The databse is essentially incomplete and would not serve any purpose.
<br>(b) None of the tables has primary key ...

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