Remote Dependencies

When changing plsql code in a production system the dependencies between objects can cause some programs to be invalidated. Making sure all programs are valid before opening the system to users is very important for application availability. Oracle automatically compiles invalid programs on their first execution, but a successfull compilation may not be possible because the error may need code correction or the compilation may cause library cache locks when applications are running.

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http://oracletoday.blogspot.com/2009/02/remote-dependencies.html

Enjoy

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