Twitter is running on cassandra ( a NOSQL database )--> nosql database means non-relationational database
http://guyharrison.squarespace.com/blog/2010/8/23/playing-with-cassandra-and-oracle.html
Cross-Instance Deadlock in RAC
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I've created a *video demonstration of a Cross-Instance Deadlock in a
2-node RAC* environment and how to read the trace file.
Note : Only the SQL that h...
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