RE: Can't find the sql text from v$sql via the hash value

  • From: "Laimutis Nedzinskas" <Laimutis.Nedzinskas@xxxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Mon, 19 Jun 2006 09:07:03 -0000

what about locks?


From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On 
Behalf Of eagle fan
Sent: 17. júní 2006 18:35
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: Can't find the sql text from v$sql via the hash value

Thanks for your reply. 
The hang just last several seconds, after several seconds, the application 
client cancel the operation and mark the database as unavaliable.
Then we took the application clients back and connected to database again, but 
after a while ,the same problem happened again.
So I can't do snapshot when the database hung. We collected the statspack every 
15 minutes, but no useful info showed in it, because the hang just last a very 
short period.
I run a monitor script to collect some infomation such as machine name , hash 
value , wait event from v$session_wait and v$session view tables. I got the 
hash value from v$session, but I can't get the sql text. So I still don't know 
what's the root cause. 
The hash value seems is realated to "table_4_2000_f4e_0_0_0" , but not related 
to the original sql text.
Why v$session view record this hash value? I think it should record the hash 
value related to the original sql text.

Eagle Fan

Oracle DBA 


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