sorry for this silly question,
i would like to learn ORACLE but i dont know from where should i start and what toopics should be covered?
i know sql.so i like to start pl/sql.
please suggest me what topics should i cover?

@cereal's link is a good place to start. A bit of background information - PL/SQL is a derivative of the ADA programming language. It can also call into the Oracle JVM if you need to write some Java code to use in your database procedures.

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