Q. Relation R with an associated set of functional dependencies, F, is decomposed into BCNF. The redundancy (arising out of functional dependencies) in the resulting set of relations is

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Q. Consider a schema R(A, B, C, D) and functional dependencies A -> B and C -> D. Then the decomposition of R into R1 (A, B) and R2(C, D) is

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Q. Which normal form is considered adequate for normal relational database design?

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Q. Representations such as the in the dept year relation, with one column for each value of an attribute, are called _______ they are widely used in spreadsheets and reports and in data analysis tools.

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Q. Thus a _______ of course data gives the values of all attributes, such as title and department, of all courses at a particular point in time.

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Q. Relation dept year(dept name, total inst 2007, total inst 2008, total inst 2009) .Here the only functional dependencies are from dept name to the other attributes .This relation is in

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Q. In the schema (dept name, size) we have relations total inst 2007, total inst 2008 . Which dependency have lead to this relation ?

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Q. Designers use which of the following to tune performance of systems to support time-critical operations?

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Q. What is the best way to represent the attributes in a large database?

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Q. Suppose the user finds the usage of room number and phone number in a relational schema there is confusion.This is reduced by

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Q. Which of the following has each related entity set has its own schema and there is an additional schema for the relationship set.

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Q. _____________ can help us detect poor E-R design.

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Q. In 2NF

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Q. Fifth Normal form is concerned with

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Q. In which of the following , a separate schema is created consisting of that attribute and the primary key of the entity set.

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Q. Which of the following has each related entity set has its own schema and there is an additional schema for the relationship set?

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Q. If a multivalued dependency holds and is not implied by the corresponding functional dependency, it usually arises from one of the following sources.

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Q. Which forms has a relation that possesses data about an individual entity?

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Q. Which of the normal form is based on multivalued dependencies ?

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Q. The main task carried out in the __________ is to remove repeating attributes to separate tables.

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