Re: Can Bind variables be an issue with respect to network transfer?

Hi Nenad,

there are 5 inlists combined with or.

Thanks

Lothar

Am 14.10.2020 um 16:04 schrieb Noveljic Nenad:
>
> “An IN list is limited to 1,000”
>
> Unless it’s a multi-value IN list, which is limited to 1e5 elements.
>
> Best regards,
>
> Nenad
>
> *From:*oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org>
> *On Behalf Of *Jonathan Lewis
> *Sent:* Mittwoch, 14. Oktober 2020 16:00
> *To:* Oracle L <oracle-l_at_freelists.org>
> *Subject:* Re: Re: Can Bind variables be an issue with respect to
> network transfer?
>
> Lothar,
>
> Comparing the ela for the "PGA allocate memory" with the matching
> "tim=" I think what you're seeing is the time it takes Oracle to build
> an array and copy data from the SQL*Net packet to the array. Obviously
> some of the difference is about the time to write to the trace file,
> even so there's a lot of other CPU to account for.and it's happening
> between the memory allocations.  I doubt if "traffic" (i.e. movement
> across the network) is relevant - the ns calls are probably a layer
> above that moving the data between the sql*net layer and the session
> layer.
>
> I am curious about the internal_function() and 4,700 variables.  An IN
> list is limited to 1,000 and I wouldn't have expected an OR of IN
> lists to turn into a single internal_function(), Perhaps there's
> something about data types and character set conversion (or some other
> conversion) that's adding to the CPU time.
>
> Regards
>
> Jonathan Lewis
>
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