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 SQL  |  Question 38 of 138    Print  
Whats the back end processes when we type "Select * from Table"?

  
Total Answers and Comments: 2 Last Update: May 26, 2007     Asked by: sanju 
  
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October 25, 2005 02:32:08   #1  
shashi        

RE: Whats the back end processes when we type "Select ...

First it will look into the System Global Area (SGA) weather the query is been exectued earlier.

If it exist, it would retrive the same output present in memory.

If not the query we typed is complied and the resulting parse tree and excution plan is been stored in SGA.  Then query gets executed and output is given to the application. 


 
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May 25, 2007 21:06:19   #2  
naveen_vangapalli1        

RE: Whats the back end processes when we type "Select ...
the select statement goes to oracle server and the server responds
 
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