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Questions and Answers
What is the value of the Index property for Customer.Customer ID?
What is the value of the Index property for Customer.Customer ID?
Primary Key
What is the value of the Index property for Subscription.Customer ID?
What is the value of the Index property for Subscription.Customer ID?
Foreign Key
State the type of each relation and justify your answer according to Indices.
State the type of each relation and justify your answer according to Indices.
Customer - Subscription: One-to-Many (1:M), based on Primary-Foreign Key relationship. Library - Subscription: One-to-Many (1:M), based on Primary-Foreign Key relationship. Type - Customer: One-to-Many (1:M), based on Primary-Foreign Key relationship.
Give the Data type and size for Customer ID in Subscription Table.
Give the Data type and size for Customer ID in Subscription Table.
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Give the Data type and size for Library ID in Subscription Table.
Give the Data type and size for Library ID in Subscription Table.
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Explain the concept of 'Cascade Delete Related Records' in the context of Customer - Subscription relation.
Explain the concept of 'Cascade Delete Related Records' in the context of Customer - Subscription relation.
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