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Author Question: Technology to support an information system is itself a system. Indicate whether the statement is ... (Read 58 times)

dollx

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on: Jul 7, 2018
Technology to support an information system is itself a system.
 
  Indicate whether the statement is true or false

Question 2

Define attribute integrity.
 
  What will be an ideal response?


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cloud

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

Attribute integrity is ensured by type definition, foreign keys, and constraints, which consist of domain and check constraints. A domain is a set of allowable values for a given attributes. Check constraints are conceptually the same as domains but, unlike domains, apply to individual tables, whereas domains are reusable. Assertions are rules that go beyond single attributes or single tables.


dollx

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Reply 2 on: Jul 7, 2018
Excellent

amandalm

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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