Re: Database link usage per object?
Date: Wed, 19 Oct 2011 08:57:43 +0530
in my opinion, there is no direct method but we could possibly do one by instrumenting some code. You could store the value for "bytes received/sent via SQL*Net from/to dblink" from v$SESSTAT and the access the object and then check the value again?. I have not tried this myself but should work. do let me know if this works or otherwise
On Wed, Oct 19, 2011 at 8:14 AM, Wisniewski, Brian S < brian.s.wisniewski_at_jpmchase.com> wrote:
> Anyone have a good way to determine how much data is being sent across
> database links on a per-object basis? I'm trying to find our biggest
> offenders and I'm having a hard time trying to track down actual usage. I
> wrote this to find some info about what is being called and how many times
> but the bytes from sql_plan aren't going to be accurate for what I'm trying
> to track.
> Database is 18.104.22.168
> col operation for a15;
> col object_node for a30;
> col object_owner for a15;
> col object_name for a30;
> col other_tag for a18;
> select sp.operation, sp.object_node, sp.object_owner, sp.object_name,
> sp.other_tag, round(sum(sp.bytes)/(1024*1024),0) Meg, count(*)
> from v$sql_plan sp
> where sp.operation = 'REMOTE'
> group by sp.operation, sp.object_node, sp.object_owner, sp.object_name,
> order by 7, sp.object_name
> Thanks - Brian
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