This topic contains a solution. Click here to go to the answer

Author Question: What are null values, and why are they a problem? What will be an ideal ... (Read 94 times)

fagboi

  • Hero Member
  • *****
  • Posts: 535
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Mholman93

  • Sr. Member
  • ****
  • Posts: 328
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

  • Member
  • Posts: 535
Reply 2 on: Jul 7, 2018
Wow, this really help


Hdosisshsbshs

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Excellent

 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

For a complete list of videos, visit our video library