Database link usage per object?

  • From: "Wisniewski, Brian S" <brian.s.wisniewski@xxxxxxxxxxxx>
  • To: "oracle-l@xxxxxxxxxxxxx" <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 18 Oct 2011 22:44:24 -0400

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

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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