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 
No Comments
The Need for java.lang.Thread and java.sql is Gone
At least for the application developer.
Back in the days of Java1, two cool parts of this new platform was the threading apis and the JDBC apis. These APIs have both had immense success. But I think we, as application developers, should forget about them. I know I mostly have.
There are good reasons, that these apis [...]
August 28, 2008
Tags: Java, jdbc, thread Posted in: Design, Programming 14 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