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Author Question: What are null values, and why are they a problem? What will be an ideal ... (Read 72 times)

fagboi

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on: Jul 7, 2018
What are null values, and why are they a problem?
 
  What will be an ideal response?

Question 2

A set of SQL statements stored in an application written in a standard programming language is called ________.
 
  A) a stored procedure
  B) a view
  C) embedded SQL
  D) a trigger


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Mholman93

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

A null value is a missing value, a value that has never been input into a cell in a table. Null values are a problem because they are ambiguous. A null value can represent three different conditions: (1 ) the value is inappropriate, (2 ) the value is appropriate but unknown, or (3 ) the value is appropriate and known but not entered into the database.

Answer to Question 2

C


fagboi

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Reply 2 on: Jul 7, 2018
Great answer, keep it coming :)

adf223

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Reply 3 on: Yesterday
Excellent

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