Re: What's fast way to get total of records

Daniel Roy wrote:

>Thanx Richard for your reply. I didn't think that analyzing would make
>a difference in that case (I know, Iknow, I should always analyze my
>tables under CBO). I analyzed the table, and the exec plan in fact
>changed to using the index, even without a hint. Anyone has an idea
>why the plan would change according to how many rows Oracle thinks
>there are in the table (before I analyzed the table, Oracle thought
>that there were 41 rows in the table)?
>
>Daniel
>
>

If the cost of reading the index blocks plus reading the table blocks is higher than the cost of just
reading the table blocks using the index costs more.

-- 
Daniel Morgan
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