Exam 5: Database Management Systems

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A partial dependency happens when an attribute that is dependent on a portion of the primary key not on the entire key.

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The approach to business event processing in which facts are stored in a relational database is

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Normalize the database structure in Figure TB 5.1 by transforming it into first normal form (1NF). Normalize the database structure in Figure TB 5.1 by transforming it into first normal form (1NF).

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The normalization process involves various steps (called normal forms) that transform an original database design into an equivalent design that is free of problems.

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____ databases include abstract data types that allow users to define characteristics of the data to be stored when developing an application.

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Transform the relation in Figure TB 5.3 to second normal form (2NF).Label each new relation with a name that describes the attributes. Transform the relation in Figure TB 5.3 to second normal form (2NF).Label each new relation with a name that describes the attributes.

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In an entity-relationship diagram, _____________ are used to show the characteristics of relationships.

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Data independence refers to decoupling the data from the system applications, and it is a major difference between the database approach and the applications approach.

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A(n) ___________________________________ is the attribute whose value is unique for every entity that will appear in the database.

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Another name for sequential coding is ____________________ coding.

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Running an applications approach to sales and inventory programs leads to

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An attribute is ______________________________________ on a second attribute if the value for the first attribute determines a value for the second attribute at any time.

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A data model depicts user requirements for data stored in a database.

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An attribute is equivalent to a field and may also be known as a row.

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The database approach to business event processing, in which facts about events are stored in relational database tables instead of separate files, solves many of the problems caused by data redundancy.

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A(n) ____________________ table contains repeating attributes (or fields) within each row (or record).

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A table is in first normal form (1NF) if it has no partial dependencies; that is, no non-key attribute is dependent on only a portion of the primary key.

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Both the mnemonic and the hierarchical coding schemes attach specific meaning to particular character positions.

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In a DBMS, an item that describes a portion of the elements of the record types and data items above it is called a

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List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 2 - Coding Examples List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. List 1 shows the coding schemes discussed and illustrated in Chapter 5, while List 2 contains eight coding examples.List 1 - Coding Schemes    List 2 - Coding Examples                      Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all. Required: On your solution sheet, list the numbers 1 through 8 from List 2.Next to each number, show the capital letter from List 1 that best describes the coding type represented by each example.HINT: Some letters from List 1 may be used for more than one coding example, while some letters may not be used at all.

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