Database Administration (MOSC)

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ORA-03135: connection lost contact client

edited Sep 1, 2010 5:41PM in Database Administration (MOSC) 2 commentsAnswered
 Hi,
I have a problem, I am using 10g sqlplus Client to connect to server database 10.2.0.3.0 DB but after of to do query idle time i am getting the error
ORA-03135: connection lost contact error

I execute the following query and it works ok

select column1, column2, column3 column4 column5, ........, column10 from table

but when I added more columns to the query, the error is reported

ORA-03135: connection lost contact error

Please, Do you help me.

Thanks

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