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irukulla

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What kind of wait event is this in Oracle

Hi, when i am looking at my wait event on my systems, there are many SID, with the same wait event "SQL*Net Message from Client".

Can anybody tell me, what is causing this wait event?
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johnsone
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Typically that message would be for a session that is waiting for the client machine to issue a query.  It is not a problem.
That event belongs to the class of "Idle Events", i.e. what a session says it's waiting on when it's idling. This query will give you all of them, they can be safely ignored on most cases:

select * from v$event_name where wait_class='Idle' order by name
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Sean Stuber

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irukulla

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why the B?

That is a penalty grade, please don't close questions with penalties without first giving the participants a chance to fulfill whatever requirement you thought was lacking