Author Question: A lack of naming conventions can lead to confusion and make it harder to maintain or modify a ... (Read 30 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
A lack of naming conventions can lead to confusion and make it harder to maintain or modify a database.
 
  Indicate whether the statement is true or false

Question 2

Explain cross joins and how one might result by accident.
 
  What will be an ideal response?



Joy Chen

  • Sr. Member
  • ****
  • Posts: 354
Answer to Question 1

TRUE

Answer to Question 2

In a cross join each record of the first table is matched to every record in the second table. This can happen by accident in a equi join if the developer forgets to include the relationship between the tables in where clause of the join.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

For a complete list of videos, visit our video library