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Databases have become an integral part of modern life. Today’s society is an information-driven society, and database technology has a direct impact on all aspects of daily life

Java is a high-level programming language developed by Sun Microsystems but later was taken over by Oracle. This tutorial gives a basic understanding on Polymorphism.

http://www.embarcadero.com/products/db_optimizer DB Optimizer 1.5 now offers complete SQL profiling and tuning for DB2, Oracle, SQL Server and Sybase. With a built-in SQL IDE, DB Optimizer is the perfect tool to help both DBAs and application developers ensure only the highest quality, best performance SQL code gets into the production environment. Combined with J Optimizer, Embarcadero has a great story to tell around system-wide optimization (profiling and fine-tuning of Java and SQL code) from the Java application layer all the way down to the database layer.