Business Studies

1. A hospital wants to have a database to keep track of its patients, doctors, and wards. Construct an E-R diagram to model the business. Indicate the key for each entity type.
2. A small bank offers two types of accounts to local residents, checking and saving. To keep its transactions simple, the bank does not allow joint accounts. Please construct an E-R diagram to represent its database design. Indicate the key for each entity type.
3. (Optional Research) Go to the web and find out some facts about entity-relationship diagrams. Then write an essay for a popular magazine about what the model is about.
ask those questions separately.

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