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Re: Can I partition my primary key constraint index?

From: <Cherie_Machler_at_gelco.com>
Date: Mon, 14 May 2001 08:17:02 -0700
Message-ID: <F001.003027D9.20010514061708@fatcity.com>

Diana,

Can I build the initial local primary key index using the storage and tablespace clause to place the index in the correct index tablespace to begin with. This index is multiple gigs and my database is tight on space right now. I'm not sure that I have enough room to put the index in the data tablespace and then move it to the appropriate index partition tablespaces?

Do you put each of your primary key index partitions in a separate tablespace?

The last DBA put all of our indexes into three tablespaces
(small, medium, large) which doesn't work very well when you
go to get rid of a partition.

Thanks,

Cherie

                                                                                       
                            
                    Diana_Duncan_at_ttpa                                                  
                            
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                    05/13/01 02:55 PM                                                  
                            
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Yes, Cherie, you can. When creating the primary key constraint, use the "USING INDEX" clause to specify any storage parameters you want for the automatically created primary key index. I always use the clause, because I am a picky DBA and I want my indices in their own tablespace and with their own storage parameters. Also, if you specify that the index is LOCAL, the partitioning will follow the same algorithm as the table. Unfortunately, if you do LOCAL, the index partitions will automatically be placed in the same tablespace as the table, but you can "move" the partitions if you wish.

HTH, Diana Duncan
TITAN Technology Partners
One Copley Parkway, Ste 540
Morrisville, NC 27560
VM: 919.466.7337 x 316
F: 919.466.7427
E: Diana_Duncan_at_ttpartners.com

                    Cherie_Machler

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                    om                    Subject:     Can I partition my
primary key constraint index?
                    05/11/2001

                    04:51 PM

                    Please respond

                    to ORACLE-L








Oracle will automatically create an index for your primary key constraint.

I have a lot of large partitioned tables in my data warehouse. All of my primary key indexes are non-partitioned. I would like them to be partitioned.

When I drop the constraint and re-enable it, can I specify at that time that I want the index to be partitioned? Or do I need to drop my index and rebuild it to be partitioned after the fact?

Is there any problem with having partitioned primary key indexes?

Thanks,

Cherie

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Received on Mon May 14 2001 - 10:17:02 CDT

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