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Please answer the follow question. What is PL/SQL? Describe how PL/SQL can be used in a database and in application development and outline the benefits

Please answer the follow question.

What is PL/SQL? Describe how PL/SQL can be used in a database and in application development and outline the benefits of using it. (30 marks) c) Explain locking and outline the types of locks available in DBMS today.

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