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About Execution Plan [message #476751] Sat, 25 September 2010 06:45 Go to next message
Messages: 527
Registered: December 2009
Senior Member

Share Your Thoughts.

1) All the new Sql statement to the shared pool needs to have a exclusive 'Execution Plan'?

2) With the execution Plan, Hard parsing will perform.

3) For Soft Parsing, we no need to have the Execution Plan?

4) If the Sql statement found some Data from the Buffer and some Data need to be fetched from the Disk (Hard Parsing), will this case Execution Plan has to be made again?
If yes, will the existing execution Plan be modified or totally a new execution Plan will be generated?.

Thanks in advance
Re: About Execution Plan [message #476757 is a reply to message #476751] Sat, 25 September 2010 08:40 Go to previous message
Michel Cadot
Messages: 68257
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator
1) What does this mean? Explain.
2) Meaningless
3) Meaningless
4) You didn't understand anything.

Once again, don't try to guess but read Database Concepts from cover to cover.

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