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 DataBase Testing  |  Question 39 of 47    Print  
How a trigger can help in improving performance? How many types of triggers are there and What do they do?

  
Total Answers and Comments: 2 Last Update: October 03, 2008     Asked by: prasad.gandra 
  
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July 13, 2007 12:46:44   #1  
sulochanalak Member Since: July 2007   Contribution: 2    

RE: How a trigger can help in improving performance? ...
I can answer for types of triggers
Types to triggers :

 1. Database trigger: can be executed before and after the dml commands
       a. Row level: if we want to cahnge any row then row level triggers are fired
       b. Statement level: it is executed eventhough no row is changed from the table.
 2. Form  trigger

 
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October 03, 2008 02:36:19   #2  
chandraagi Member Since: October 2008   Contribution: 1    

RE: How a trigger can help in improving performance? How many types of triggers are there and What do they do?
Use of triggers: we can do the record insertion/deletion/updation when we perform certain operation on a table or database logon and logoff
Improves the security of data and tracking the changes done on a table records
based on the type operation triggers are Insert, Update, Delete

 
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How a trigger can help in improving performance? How many types of triggers are there and What do they do?
Read Answers (2) | Asked by : prasad.gandra


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