Author Question: Only the 64-bit version of the Java Runtime Environment should be installed when using a 64-bit ... (Read 74 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
Only the 64-bit version of the Java Runtime Environment should be installed when using a 64-bit operating system.
 
  Indicate whether the statement is true or false

Question 2

What are SQL triggers and how are they used?
 
  What will be an ideal response?



vickybb89

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

FALSE

Answer to Question 2

An SQL trigger is a stored program that is attached to a table or view. The trigger is invoked by the DBMS whenever an insert, update or delete request is made on the table or view with the trigger. There are three commonly used triggers: BEFORE, INSTEAD OF, and AFTER (MS SQL server does not support BEFORE). This creates a set of nine possible trigger types: BEFORE + INSERT or UPDATE or DELETE, INSTEAD OF + INSERT or UPDATE or DELETE, and AFTER + INSERT or UPDATE or DELETE. Triggers are used (among other things) for (1 ) providing default values, (2 ) validity checking, (3 ) updating views, and (4 ) enforcing referential integrity actions.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

For a complete list of videos, visit our video library