Yeah, it sure does, if the index is unique. Try out this test:
drop table y; create table y(y number); create unique index ypkidx on y(y); alter table y add constraint ypk primary key(y); alter table y drop primary key; select table_name, index_name from user_indexes where index_name = 'YPKIDX' / drop table y; create table y(y number); create index ypkidx on y(y); alter table y add constraint ypk primary key(y); alter table y drop primary key; select table_name, index_name from user_indexes where index_name = 'YPKIDX' / Notice that the non unique index will still be available, as Jack has already pointed out. Don't know why the behaviors are different. Jared On Friday 27 December 2002 08:14, Denny Koovakattu wrote: > If you build a separate index to enforce the primary key, Oracle > shouldn't drop it when you disable or drop the primary key. > > Regards, > Denny > > Quoting Rachel Carmichael <[EMAIL PROTECTED]>: > > Here's a reason: > > > > have you ever tried to find the three duplicate rows in a 12 million > > row table without using the primary key constraint? I've had to > > disable > > or drop the constraint in order to use the exceptions table. Once I do > > that, even if I've built a separate index that enforces the primary > > key > > constraint, Oracle drops the index. So I HAVE to rebuild it. If I > > allow > > the index to be rebuilt when I re-enable the primary key constraint, > > it > > builds it in the default tablespace of the table owner, not where I > > want it. > > > > if anyone has a better way to fix this problem, I'm more than happy to > > hear it! It's a data warehouse and the third party app has a bug we > > can't find and on occasion sqlloads (via direct path) duplicate rows > > > > Rachel > > > > --- Jared Still <[EMAIL PROTECTED]> wrote: > > > Though I have published a script for determining indexes that > > > need to be rebuilt, and then rebuilding them, I have to say that > > > this is almost never necessary. > > > > > > Why are you rebuilding indexes? About the only reason for ever > > > doing so is that the BLEVEL >= 5. > > > > > > goto asktom.oracle.com, and do a search on 'index rebuild'. > > > > > > Currently, the third article may be of interest. > > > > > > Jared > > > > > > On Thursday 26 December 2002 12:24, Richard Huntley wrote: > > > > Anyone have any useful scripts for doing this? > > > > > > > > TIA, > > > > Rich > > > > > > ---------------------------------------- > > > Content-Type: text/html; charset="iso-8859-1"; name="Attachment: 1" > > > Content-Transfer-Encoding: 7bit > > > Content-Description: > > > ---------------------------------------- > > > -- > > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > > -- > > > Author: Jared Still > > > 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!? > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > > http://mailplus.yahoo.com > > -- > > Please see the official ORACLE-L FAQ: http://www.orafaq.net > > -- > > Author: Rachel Carmichael > > 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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Jared Still 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).
