Author Question: Briefly describe three types of triggers. What will be an ideal ... (Read 88 times)

Beheh

  • Hero Member
  • *****
  • Posts: 520
Briefly describe three types of triggers.
 
  What will be an ideal response?

Question 2

Transactions should be written to the log before they are applied to the database itself.
 
  Indicate whether the statement is true or false



epscape

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

Common types of triggers include BEFORE triggers, AFTER triggers, and INSTEAD OF triggers. BEFORE triggers are modules of procedural logic that the DBMS automatically invokes before inserting, updating, or deleting data. An AFTER trigger is a module of procedural logic that the DBMS automatically invokes after inserting, updating, or deleting data. INSTEAD OF triggers are modules of procedural logic that the DBMS automatically invokes in place of inserting, updating, or deleting data.

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

For a complete list of videos, visit our video library