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Author Question: EXISTS and NOT EXISTS are actually just another form of correlated subqueries. Indicate whether ... (Read 41 times)

mmm

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on: Jul 7, 2018
EXISTS and NOT EXISTS are actually just another form of correlated subqueries.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is not true about a relation?
 
  A) Has rows containing data about an entity
  B) Has columns containing data about attributes of the entity
  C) Has cells that hold only a single value
  D) Can have two identical rows


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mjbamaung

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

TRUE

Answer to Question 2

D


mmm

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Reply 2 on: Jul 7, 2018
:D TYSM

xiaomengxian

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

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