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  Oracle Concepts by Burleson Consulting

Programmatic Interfaces to Relational Databases

This tutorial introduces you to the interface layer between PL/SQL and the SQL data access.  We will begin by explaining the concept of cursor manipulation and show how cursors allow row-at-a-time processing of data sets.

We will also explore call SQL from inside PL/SQL, and conversely, calling PL/SQL inside Oracle SQL via built-in functions.  This tutorial also describes the process of storing PL/SQL inside Oracle and shows how stored procedures, functions, and packages are executed within Oracle.

Exception handling is an important part of PL/SQL and the student must be proficient in using the EXCEPTIONS clause to trap expected Oracle errors and force the PL/SQL to perform appropriate error handling when an error occurs.

We wrap-up this tutorial with a discussion of PL/SQL tables and see how they can improve the performance of database programs.

For more details, see the "Easy Oracle Series" a set of books especially designed by Oracle experts to get you started fast with Oracle database technology.

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