The Java language is more powerful than SQL and compiled classes can be called from client applications as easily and in the same way as stored procedures. Java classes can contain both information about the subject and some computational logic. For example, you could design, write, and compile Java code to create an Employees class complete with various methods that perform operations on an Employees table. You install your Java classes as objects into a database and write SQL cover functions or procedures to invoke the methods in the Java classes.

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