With CTAS, truncate and insert, indexes will be rebuilt automagically. I used to do index rebuilds (alter index rebuild) for superstitious reasons only. Occasionally, when the time needed to do a range scan increased dramatically, it has even benefited the performance.
On 2002.07.24 15:03 Peter R wrote: > > Hi Friends, > > Iam reorganizing my tables thru copy(CTAS), So when Iam re-inserting > data into my Original table Will the indexes will build automatically > or I have to rebuild?? Here Iam not doing for indexes anything i.e > Iam not disabling it. > > I want to create table thru CTAS, truncate original table, copy back > data into original table from duplicate table. So that I can pack > data and get back my space back. My environment is v7.3 on AIX. > > > Thanks in advance > peter. > > > _________________________________________________________________ > Chat with friends online, try MSN Messenger: http://messenger.msn.com > >-- > Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- > Author: Peter R > 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). -- Mladen Gogala -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mladen Gogala 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).
