Oracle, WebLogic and “The Network Adapter could not establish the connection”
Today I battled a periodic error, where my development WebLogic would not start, due to connection problems against the database. It was kinda strange, because other Java tools like DbVisualizer had no trouble. The exception:
Error starting JDBC transaction. Cause: java.sql.SQLException: Io-exeption: The Network Adapter could not establish the connection.
..turned out to lead me in [...]
April 28, 2009
Tags: jdbc, oracle Posted in: Programming 
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Killing An Oracle Session Using SQL
Sometimes the need arises for me to terminate a connection or two to Oracle from SQL. Applications with connections to Oracles does not always terminate their connections properly, and Oracle some times does not discover them as dead. Luckily, you can discover them through SQL into Oracles data-dictionary, and kill them using a quick alter [...]
February 4, 2008
Tags: oracle Posted in: Uncategorized No Comments
Oracle ReadTimeout – A Really Useful Oracle Driver Property
For some time now, I have been bugged by a firewall somewhere along the path between my development machine and our Oracle database. The firewall seems to close the open database connections after some time of inactivity. It was particularly irritating, as my favourite SQL plugin in IDEA locked up IDEA totally, needing a kill [...]
January 28, 2008
Tags: driver, Java, jdbc, oracle Posted in: Programming No Comments
The Big Acquisition Day
Hmm, it seems today was the day of big acquisitions.
Oracle Buys BEA
I can see the benefit in this one, at least for Oracle. They are getting a seriously good Java application server (WebLogic), something they have been missing always. It isn’t that Oracle has not tried. I seem to recollect that they once built one [...]
January 16, 2008
Tags: bea, mysql, oracle, sun, weblogic Posted in: Uncategorized 2 Comments