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Author Question: Which of the following is the default transaction isolation level offered by Oracle Database? A) ... (Read 80 times)

haleyc112

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on: Jul 7, 2018
Which of the following is the default transaction isolation level offered by Oracle Database?
 
  A) Read Committed
  B) Serializable
  C) Repeatable Read
  D) Read Only

Question 2

Explain the concept of semantic objects as being a sufficient description.
 
  What will be an ideal response?


spencer.martell

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

A

Answer to Question 2

A semantic object is said to be a sufficient description because: (1 ) it contains all the attributes necessary for the users to do their work, and (2 ) it is self-contained, which means that all the data required about a given object is contained in that object.


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