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Question
What is rule base and cost base optimizer?
 Question Submitted By :: Akshay
I also faced this Question!!     Rank Answer Posted By  
 
  Re: What is rule base and cost base optimizer?
Answer
# 1
one is supported in 8i and another in 9i/10g
cost base optimizer display the cost attributes of query
and it is easier.
 
Is This Answer Correct ?    1 Yes 3 No
Chandra Bhusan Prasad
 
  Re: What is rule base and cost base optimizer?
Answer
# 2
Rule based optimiser will optimise the query based on the
rules.

Cost based optimiser will optimise the query based on the
statistics available for the table.
 
Is This Answer Correct ?    4 Yes 1 No
Chandra Shekher
 
 
 

 
 
 
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