Very slow queries when connecting through the listener in Oracle 10.2.0.4

Hello

I have a database 10g with a small table (2 columns, 9 lines).

When I connect to the db through the listener (sqlplus system/manager@SID) and run this query: select * table, the run time is approximately 500ms

When I connect to the db, giving the ORACLE_SID SID (export ORACLE_SID = SID; sqlplus system/manager) and run the same query, it is 10 x faster...

The listener is: TNSLSNR for Solaris: release 10.2.0.4.0 - Production
Is the database: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production 64-bit

Any ideas?

Thank you... (I'm a newbie in oracle and English... so I apologize in advance)

Edited by: user1248176 APR 12. 2010 22:50

steve80lyon wrote:
If this problem a network, then please note that I run the client and the server db on the same machine... a sun fire v240 and I'm alone on this server.

I also tried it on another computer, run the client on the same machine as the server... It's the same question.

I am lost... I ran the client that connects to a Database 9i (the same structure but the data of the elder) I have a time to ' correct '...

Edited by: steve80lyon Apr 13. 2010 08:11

The request may not be leaving the machine, but it is still going through the network TCP stack. You have the gun of smoking showing exactly where the extra time is coming. Should it take that long? I don't know, but it seems to me that calculation adds up correctly to account for the difference between the tcp protocol and legacy connections.

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