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fragmentation [message #249620] Thu, 05 July 2007 04:02 Go to next message
jainarayan5484
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What is fragmentation and How Can i implement in programe pls
help me.

Jai
Re: fragmentation [message #249631 is a reply to message #249620] Thu, 05 July 2007 06:39 Go to previous messageGo to next message
Michel Cadot
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http://en.wikipedia.org/wiki/Fragmentation
PL/SQL User's Guide and Reference

Regards
Michel
Re: fragmentation [message #249666 is a reply to message #249620] Thu, 05 July 2007 08:24 Go to previous messageGo to next message
joy_division
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You want to implement fragmentation? That's a new one. Get a copy of Oracle 6 or 7 from 15 years ago and it will just happen.
Re: fragmentation [message #249754 is a reply to message #249620] Thu, 05 July 2007 15:00 Go to previous messageGo to next message
DreamzZ
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jainarayan5484 wrote on Thu, 05 July 2007 03:02
What is fragmentation and How Can i implement in programe pls
help me.

Jai




create a table with indexes insert 100 millions rows and delete 5 million rows...fragmentation will produce..
Re: fragmentation [message #249761 is a reply to message #249754] Thu, 05 July 2007 15:24 Go to previous messageGo to next message
joy_division
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DreamzZ wrote on Thu, 05 July 2007 16:00
jainarayan5484 wrote on Thu, 05 July 2007 03:02
What is fragmentation and How Can i implement in programe pls
help me.

Jai




create a table with indexes insert 100 millions rows and delete 5 million rows...fragmentation will produce..


Not in a database with locally managed tablespaces.
Re: fragmentation [message #249765 is a reply to message #249761] Thu, 05 July 2007 15:56 Go to previous messageGo to next message
DreamzZ
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joy_division wrote on Thu, 05 July 2007 14:24
DreamzZ wrote on Thu, 05 July 2007 16:00
jainarayan5484 wrote on Thu, 05 July 2007 03:02
What is fragmentation and How Can i implement in programe pls
help me.

Jai




create a table with indexes insert 100 millions rows and delete 5 million rows...fragmentation will produce..


Not in a database with locally managed tablespaces.



BY deletetion fragmentation will not produce in index and table??
Re: fragmentation [message #249900 is a reply to message #249765] Fri, 06 July 2007 08:19 Go to previous messageGo to next message
joy_division
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I do not understand the response.
Re: fragmentation [message #249941 is a reply to message #249900] Fri, 06 July 2007 10:12 Go to previous messageGo to next message
DreamzZ
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its okay.

by deletion fragmentation will produce in table and indexes
that what my mean was.

[Updated on: Fri, 06 July 2007 10:13]

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Re: fragmentation [message #249995 is a reply to message #249941] Fri, 06 July 2007 13:11 Go to previous messageGo to next message
joy_division
Messages: 4963
Registered: February 2005
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Oh, fragmentation in a table as opposed to a tablespace. I get what you are saying. Unfortunately, OP made an ill attempt at explaining what they meant by fragmentation, so it's left to the responders to assume. I made mine...
And for some reason I was thinking you were talking about created tables and indexes and then dropping them. Don't know how I misread that. Maybe because I once again assumed seeing the keyword fragmentation which I associated with DMT.

[Updated on: Fri, 06 July 2007 13:14]

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Re: fragmentation [message #249998 is a reply to message #249995] Fri, 06 July 2007 13:29 Go to previous message
Michel Cadot
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And of course there is ALWAYS table fragmentation if you use ASSM with or without delete.
And most of the time deletes on index do not generate index fragmentation (unless you call space in free list fragmentation).

Regards
Michel
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