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Sams Teach Yourself SQL in One Hour a Day, Fifth Edition by Arie D. Jones, Ron Plew, Ryan Stephens

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LESSON 26An Introduction to Oracle PL/SQL

PL/SQL is the Oracle technology that enables SQL to act like a procedural language. By the end of this lesson, you should

• Have a basic understanding of PL/SQL

• Understand the features that distinguish PL/SQL from standard SQL

• Have an understanding of the basic elements of a PL/SQL program

• Be able to write a simple PL/SQL program

• Understand how errors are handled in PL/SQL programs

• Be aware of how PL/SQL is used in the real world

Introducing PL/SQL

One way to introduce PL/SQL is to begin by describing standard Structured Query Language, or SQL. SQL is the language that enables relational database users to communicate with the database in a straightforward manner. You can use SQL commands to ...

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