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.
>
>
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Received on Wed Jul 24 2002 - 15:20:20 CDT
