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Home -> Community -> Usenet -> c.d.o.server -> Re: Is it possible to alter an FK to make it indexed?
Jeremy wrote:
> Version: Oracle 8i (8.1.7.2) / Solaris 2.6
>
> Unindexed FKs are generally a 'bad thing' (although I recognise this is
> not necessarily always so) - for one thing performance can be affected
> and another is that deadlocks may become more likely.
>
> Is there an alter table statement that can be issued to modify an FK
> constraint to specify that an index should be used? I believe this is
> possible when using the 'ADD constraint' clause of alter table just.
>
> If so, is there any difference between doing that and simply issuing a
> 'create index' statemet for the FK column?
>
> Thanks...
>
No Not that i know of.
-- Cheers Ganesh Raja ganesh.raja_at_nospam.mantas.com <Remove nospam to Mail>Received on Tue Aug 31 2004 - 07:28:37 CDT
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