Find and kill "long time" blocking sessions

Dear Experts,
I'm looking for a way to kill sessions that are
blocking for more than 5 minutes.
I can find the blocking sessions thanks to v$lock and
its block field. But how can I know when this
blocking session started ?I am not sure that you are right consistent in your question
You should not search when the blocking session started but when the blocking transaction started.
Column logon_time in v$session gives the start time of the session.
However what you are searching should be column start_time in v$transaction.
SELECT t.start_time
FROM v$transaction t, v$session s
WHERE t.addr = s.taddr
AND other conditions here

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This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
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Originally Posted by clarja
Hi all,
We have some laptops (windows732bit iprint client 5.92/5.94) that go offsite each night and have found that when opening devices and printers, or word etc that check the printers and can take a long time to respond/show the printers. No doubt this is because of the ipp printers installed from iprint, the less amount of network printers the quicker it opens etc.
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Thanks.
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where run_id IN ( select r.run_id
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Find and kill "long time" blocking sessions

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