What is the option of 'parallel' do in alter index.. ?

In the alter index command the option of parallel is there ?
alter index <indexname> parallel <integer>
What exactly does it do ?
PARALLEL integer : Specification of integer indicates the degree of parallelism,
which is the number of parallel threads used in the parallel operation. Each parallel thread may use one or two parallel execution servers. Normally Oracle calculates the optimum degree of parallelism, so it is not necessary for you to specify integer.

Parallel clause if used allows one to break-up a given SQL statement so that its parts can run simultaneously on different processors in a multi-processor machine. Uisng parallel while rebuilding indexes is a good option to fasten up things.But this parallelism should be change back to noparallel or to degree 1(both are same) after rebuilding.When you use parallel clause you can check in the V$session view , many (P000,P001,P002 etc) processes get started, to fasten the query. You can go through through the below link which would be helpful for you.
Link: [http://www.orafaq.com/faqopq.htm#PERF]
Re: Parallel degree for index
HTH
Anand

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What are the options if one iPad was stolen last week and Apple created a bug which the burglar can turn off "Find My Phone"?

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Apple didn't "help the burgler" do anything. Did she have a passcode on the device? If so, the thief would not have been able to access any of the functions needed to disable Find My Phone. Also, if the device doesn't show up in iCloud's Find My Phone, it may be that it is simply turned off, or not connected to a network.

What are the options "alert" and "passes" under my account info?

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Passes will list any season passes you have purchased and still have some left to get.
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My ipod nano 6th gen fell out of my pockey and the screen cracked badly, is there any coverage for this under warranty? I just bought it a month ago. If not what are the options for getting it fixed

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deborahfromwindsor wrote:
he advises restarting by inserting the OSX disc and pressing down the C button to reboot from there then selecting disk utility, hard disk and repair.... Does he mean me to hold down the C key on the alpha keyboard or the ctrl key?
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First we need to determine if the issue you are experiencing with the computer is software or hardware based. Once we have gotten things sorted out there should be time enough to make you decision about keeping or returning it.
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Apple makes the Operating System, not the 3rd party apps. In such a big step as upgrading the OS, the user would be the one responsible for making sure that any key apps that they use are compatible with the new OS before taking the step and upgrading.

What are the options for me for Data Mining tools?

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I think that Predixion Insight is the easiest tool to use and is very powerful.
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I have IPAD 1 and I would like to sharing the screen to monitor TV (video,photo,app). What are the options?

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Changing HDD to SSD, what are the options?

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For the cm with multiple bps, what are the options for workaround?

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What are the options in the application builder application.ini file

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Ipad is frozen after attempting to download IOS upgrade. Wish i hadn't. Cannot turn off. What are the options.

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HT4848 What is the "option key" reffered to in these instructions, I don't have a key marked options?

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Comments
"PARALLEL (AUTO): The database computes the degree of parallelism, which can be 1 or greater. If the computed degree of parallelism is 1, then the statement runs serially."

What is the option key?

I know this is an easy question, but it really erritates me
what is the option key in my keyboard?
is it the one with th eapple mark or is it the alt key or is it something else?

It's not just the Alt key either....The UK keyboard 'backspace' / ⌫ key actually bears the symbol: ← and so I've always thought of it as 'backspace'. Even though it's generally called 'delete' in the Mac world.
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Shift gets an up arrow here and no text. I really don't know why this can't be standardized; or perhaps it is on the new keyboard.
Click to enlarge..
I think the Page Up/Down keys are different too.
kind regards
mrtotes

What is the option of 'parallel' do in alter index.. ?

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