« previous next »

Author Question: Which of the following is the default transaction isolation level offered by Oracle Database? A) ... (Read 70 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
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

  • Sr. Member
  • ****
  • Posts: 342
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.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

A tamed cheetah offered as tribute to the King of Thebes (1700 B.C.) A tamed cheetah offered as tribute to the King of Thebes (1700 B.C.)
This illustration shows the decibel level in various locations and associated with different ... This illustration shows the decibel level in various locations and associated with different ...
A weather map depicting the sea-level pressure distribution for March 4, 1994. A weather map depicting the sea-level pressure distribution for March 4, 1994.
Examples of Basic-Level, Subordinate, and Superordinate Concepts Examples of Basic-Level, Subordinate, and Superordinate Concepts
Muscle structure seen at the EM level Muscle structure seen at the EM level
The tertiary level of protein structure for the respiratory pigment myoglobin The tertiary level of protein structure for the respiratory pigment myoglobin
Video: First Stage of Labor and Delivery Video

For a complete list of videos, visit our video library