Exam 2: The Relational Model

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Given the functional dependency for the attributes of ENTITY1,X → (A,B,C),X is a candidate key for the relation ENTITY1 (A,B,C,X).

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Which of the following is not true of surrogate keys?

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What requirements must a two-dimensional table satisfy in order to be a relation?

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In the relational model,each row of a table contains data that represents an attribute of the entity.

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A table that meets the requirements of a relation is said to be in which normal form?

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Microsoft Access forms can only contain data from one table.

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Explain how to create a relationship in Microsoft Access.

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Although Microsoft Access is a personal database,it is still subject to the following modification problem(s):

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Normalization is the process of removing all functional dependencies from a relation.

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Although Microsoft Access is a personal database,the database tables in Access are still subject to ________ if they are not well-formed.

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To create a well-formed relation through normalization,every determinant must be a candidate key.

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A primary key is:

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Surrogate key values have no meaning to the users.

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Which of the following terms is synonymous with "tuple"?

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Given the relations:  STUDENT (SID, StudentName, Major, AdvisorID) \text { STUDENT (\underline{SID}, StudentName, Major, AdvisorID) }  ADVISOR (AdvisorID, AdvisorName, Office, Phone) \text { ADVISOR (\underline{AdvisorID}, AdvisorName, Office, Phone) } Such that each student is assigned to one advisor,which of the following is true?

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In the normalization process,it is necessary to identify all the determinants in a relation.

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Since Microsoft Access is a personal database,it is not subject to the modification problems that occur in other relational databases.

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The relationship between two attributes that denotes that if the value of the first attribute is known,then the value of the second attribute can be determined,is called a(n)________.

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During the normalization process,the remedy for a relation that is not well formed is to:

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A rule that requires every value in a foreign key to match values in the corresponding primary key is called a(n)________ constraint.

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