Which are the two ways in which entities can participate in a relationship?
Answer: B
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Microsoft Access is an enterprise-class database product.
Answer: B
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Conceptual design
Answer: C
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The relational database model was created by E.F. Codd.
Answer: A
The relational model for database management is a database model based on first-order predicate logic, first formulated and proposed in 1969 by E.F. Codd.
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One of the reasons why OODBMSs have not been widely used for business information systems is that OOP is obsolete.
Answer: B
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An instance of relational schema R (A, B, C) has distinct values of A including NULL values. Which one of the following is true?
Answer: B
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A logical schema
Answer: A
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The purpose of a database is to help people stop using spreadsheets.
Answer: B
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An application where only one user accesses the database at a given time is an example of a(n) ________ .
Answer: A
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Which structure is the hierarchical model based
Answer: A
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