RE: Can I partition my primary key constraint index?
What is the behavior difference of using a non-unique index to enforce a unique/primary key constraint when inserting a duplicate value ? Index range scan ? --- Brian MacLean [EMAIL PROTECTED] a écrit : ahhh, mostly right. I found in v8.1.6 that if I use a non-unique index to enforce a unique/primary key constraint that the index does not drop when you drop the constraint. -Original Message- Sent: Friday, May 11, 2001 2:56 PM To: Multiple recipients of list ORACLE-L Hello, Cherie, Short note first - when you drop primary key the associated index will be dropped too. To partition the index you will create this index first and then alter table table name add constraint index name primary key(column list); HTH Vadim Gorbounov Brainbench Master Oracle DBA www.brainbench.com -Original Message- Sent: Friday, May 11, 2001 4:51 PM To: Multiple recipients of list 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Vadim Gorbounov INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). = Stéphane Paquette DBA Oracle, consultant entrepôt de données Oracle DBA, datawarehouse consultant [EMAIL PROTECTED] ___ Do You Yahoo!? -- Pour faire vos courses sur le Net, Yahoo! Shopping : http://fr.shopping.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?paquette=20stephane?= INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Can I partition my primary key constraint index?
Title: RE: Can I partition my primary key constraint index? I don't know. I made the non-unique index by mistake and noticed that the index did not drop when I was correcting the mistake. -Original Message- From: paquette stephane [mailto:[EMAIL PROTECTED]] Sent: Tuesday, May 15, 2001 1:40 AM To: Multiple recipients of list ORACLE-L Subject: RE: Can I partition my primary key constraint index? What is the behavior difference of using a non-unique index to enforce a unique/primary key constraint when inserting a duplicate value ? Index range scan ? --- Brian MacLean [EMAIL PROTECTED] a écrit : ahhh, mostly right. I found in v8.1.6 that if I use a non-unique index to enforce a unique/primary key constraint that the index does not drop when you drop the constraint. -Original Message- Sent: Friday, May 11, 2001 2:56 PM To: Multiple recipients of list ORACLE-L Hello, Cherie, Short note first - when you drop primary key the associated index will be dropped too. To partition the index you will create this index first and then alter table table name add constraint index name primary key(column list); HTH Vadim Gorbounov Brainbench Master Oracle DBA www.brainbench.com -Original Message- Sent: Friday, May 11, 2001 4:51 PM To: Multiple recipients of list 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Vadim Gorbounov INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). = Stéphane Paquette DBA Oracle, consultant entrepôt de données Oracle DBA, datawarehouse consultant [EMAIL PROTECTED] ___ Do You Yahoo!? -- Pour faire vos courses sur le Net, Yahoo! Shopping : http://fr.shopping.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?paquette=20stephane?= INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: Can I partition my primary key constraint index?
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@ttpa rtners.com To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Re: Can I partition my primary key constraint index? 05/13/01 02:55 PM Please respond to ORACLE-L 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: [EMAIL PROTECTED] Cherie_Machler @gelco.comTo: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED]Fax to: omSubject: 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may
Re: Can I partition my primary key constraint index?
Cherie, Hm, good question. I think I remember (unfortunately, this was at my previous job, so I don't have the scripts) that in order to specify LOCAL, you lost control of the storage parameters -- they automatically default to the same as the table. But it's certainly worth a try. I created separate data and index tablespaces for each partition, which made the dropping of a partition and it's associated space quite simple. Diana Duncan TITAN Technology Partners One Copley Parkway, Ste 540 Morrisville, NC 27560 VM: 919.466.7337 x 316 F: 919.466.7427 E: [EMAIL PROTECTED] Cherie_Machler @gelco.comTo: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED]Fax to: omSubject: Re: Can I partition my primary key constraint index? 05/14/2001 10:17 AM Please respond to ORACLE-L 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@ttpa rtners.com To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Re: Can I partition my primary key constraint index? 05/13/01 02:55 PM Please respond to ORACLE-L 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: [EMAIL PROTECTED] Cherie_Machler @gelco.comTo: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED]Fax to: omSubject: 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
RE: Can I partition my primary key constraint index?
Ok, I'll jump in here 'cause I may be able to simplify the issue. Starting with Oracle 8, you can create a Primary Key that uses an existing index. This makes the administration stuff easier. You can create your own locally partitioned unique index (using regular CREATE INDEX syntax). Once the index is created, you can create the PK (ALTER TABLE x ADD CONSTRAINT y PRIMARY KEY (z);). The existing index will be used if Oracle can use it. This works with partitioned tables as long as the PK index is equipartitioned with the base table. Kevin -Original Message- Sent: Monday, May 14, 2001 10:17 AM To: Multiple recipients of list ORACLE-L 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@ttpa rtners.com To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Re: Can I partition my primary key constraint index? 05/13/01 02:55 PM Please respond to ORACLE-L 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: [EMAIL PROTECTED] Cherie_Machler @gelco.comTo: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED]Fax to: omSubject: 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Toepke, Kevin M INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet
RE: Can I partition my primary key constraint index?
Kevin, Thanks for your comments. I already have the existing (non-partitioned) index out there. Is there any way to convert this to a locally partitioned index? I see ways to split existing partitioned indexes into additional partitions but I don't see any documentation on changing a regular index into paritioned index. It's quite large and cumbersome so I hate to just drop it and recreate it. Isn't a local index by definition equipartitioned against the base table? I don't have to intentionally do anything to have that happen except place the LOCAL clause in the CREATE INDEX command, right? Under what cirmcumstances might Oracle not be able to use the existing index when I add the primary key constraint? Thanks, Cherie Toepke, Kevin M To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] [EMAIL PROTECTED]cc: ndant.com Subject: RE: Can I partition my primary key constraint index? Sent by: [EMAIL PROTECTED] m 05/14/01 12:36 PM Please respond to ORACLE-L Ok, I'll jump in here 'cause I may be able to simplify the issue. Starting with Oracle 8, you can create a Primary Key that uses an existing index. This makes the administration stuff easier. You can create your own locally partitioned unique index (using regular CREATE INDEX syntax). Once the index is created, you can create the PK (ALTER TABLE x ADD CONSTRAINT y PRIMARY KEY (z);). The existing index will be used if Oracle can use it. This works with partitioned tables as long as the PK index is equipartitioned with the base table. Kevin -Original Message- Sent: Monday, May 14, 2001 10:17 AM To: Multiple recipients of list ORACLE-L 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@ttpa rtners.com To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED] Sent by: cc: [EMAIL PROTECTED] Subject: Re: Can I partition my primary key constraint index? 05/13/01 02:55 PM Please respond to ORACLE-L 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
RE: Can I partition my primary key constraint index?
Title: RE: Can I partition my primary key constraint index? ahhh, mostly right. I found in v8.1.6 that if I use a non-unique index to enforce a unique/primary key constraint that the index does not drop when you drop the constraint. -Original Message- From: Vadim Gorbounov [mailto:[EMAIL PROTECTED]] Sent: Friday, May 11, 2001 2:56 PM To: Multiple recipients of list ORACLE-L Subject: RE: Can I partition my primary key constraint index? Hello, Cherie, Short note first - when you drop primary key the associated index will be dropped too. To partition the index you will create this index first and then alter table table name add constraint index name primary key(column list); HTH Vadim Gorbounov Brainbench Master Oracle DBA www.brainbench.com -Original Message- Sent: Friday, May 11, 2001 4:51 PM To: Multiple recipients of list 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Vadim Gorbounov INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Can I partition my primary key constraint index?
Hello, Cherie, Short note first - when you drop primary key the associated index will be dropped too. To partition the index you will create this index first and then alter table table name add constraint index name primary key(column list); HTH Vadim Gorbounov Brainbench Master Oracle DBA www.brainbench.com -Original Message- Sent: Friday, May 11, 2001 4:51 PM To: Multiple recipients of list 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 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Vadim Gorbounov INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
