Arup and Jacques: thanks for your help.
The command we are executing is alter table exchange partition ... with table .. include indexes. We have also a PK on each of the tables (local index on a partitioned table). Go global indices. We have tried the same command with novalidate and the results were the same. Any thougths? --- Jacques Kilchoer <[EMAIL PROTECTED]> wrote: > Did you say alter table exchange partition ... > validate or alter table exchange partition ... > novalidate? If you say novalidate then Oracle will > sort the exchange table to make sure that you are > not creating duplicate rows for the PK constraint. > There is a Metalink note on that. > Does the table have a PK enforced by a locally > partitioned unique index? Any global indexes? > What options did you have on the exchange partition > statement? > > > -----Original Message----- > > From: Gurelei [mailto:[EMAIL PROTECTED] > > > > We are having an interesting issue with the > exchange > > partition command in our shop. We are running > oracle > > 9202 on AIX 5l. The exchange partition command > used > > to take about 1 sec (or less) in our old > environmen > > (oracle 81 Dynix 4.3.3). Now the same operation > takes > > about a minute and creates a ton of IO. an Oracle > rep > > said that this has to do something with the way > > exchange partition now treats primary and unique > keys. > > Recently however a DBA on my team did 4 exchanges > in a > > row between the same two tables. First one took > about > > 45s and did a lot of IO. next one took almost no > time > > and no IO (and it did move the data), the next one > - > > again 45s and IOs, the fourth one - no time again. > > Does any one has any experience with this issue > and > > may be can shed some light on it. > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.net > -- > Author: Jacques Kilchoer > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 > http://www.fatcity.com > San Diego, California -- Mailing list and web > hosting services > --------------------------------------------------------------------- > 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). __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Gurelei INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
