| Doubt in SYS_CONTEXT [message #659610] |
Tue, 24 January 2017 04:02  |
gajini
Messages: 262
Registered: January 2006
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Senior Member |
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In one of the trigger, a value for the column is getting inserted using this value SYS_CONTEXT('USERENV','TERMINAL').
But sometimes, this column is having these values "UNKNOWN" and "pts/0".
Please let me know when these values will be generated instead of TERMINAL name.
Database version is Oracle 11.2.0.3.0 and its server is Suse Enterprise Linux.
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| Re: Doubt in SYS_CONTEXT [message #659612 is a reply to message #659610] |
Tue, 24 January 2017 04:13  |
John Watson
Messages: 8929
Registered: January 2010
Location: Global Village
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Senior Member |
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"unknown" means it isn't a terminal session. For example, anyone coming in through an application server. You might the MACHINE column more useful.
--correction: I was referring to v$session, the userenv context might be different. Perhaps use the HOST attribute.
[Updated on: Tue, 24 January 2017 04:18] Report message to a moderator |
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| Re: Doubt in SYS_CONTEXT [message #659677 is a reply to message #659617] |
Fri, 27 January 2017 01:50 |
gajini
Messages: 262
Registered: January 2006
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Senior Member |
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Hi All, Thanks for your reply. Please anyone of you explain me about what is meant by a terminal and why it shows as "UNKNOWN" for the sessions from the application servers.
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| Re: Doubt in SYS_CONTEXT [message #659679 is a reply to message #659678] |
Fri, 27 January 2017 03:24 |
cookiemonster
Messages: 13920
Registered: September 2008
Location: Rainy Manchester
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Senior Member |
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As far as oracle is concerned terminal is a bit of data given to it by the client process.
So UNKNOWN means the client process hasn't supplied a value to oracle.
Oracle does not check itself what the terminal is.
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