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Oracle Database 11g: Develop PL/SQL Program Units Volume • Student Guide D49986GC20 Edition 2.0 September 2009 D63065 Author Copyright © 2009, Oracle All rights reserved Lauran Serhal Disclaimer Technical Contributors and Reviewers Anjulaponni Azhagulekshmi Christian Bauwens Christoph Burandt Zarko Cesljas Yanti Chang Salome Clement Laszlo Czinkoczki Ingrid DelaHaye Steve Friedberg Laura Garza Joel Goodman Nancy Greenberg Manish Pawar Brian Pottle Helen Robertson Tulika Srivastava Ted Witiuk Editors Arijit Ghosh Raj Kumar Publishers Pavithran Adka Sheryl Domingue This document contains proprietary information and is protected by copyright and other intellectual property laws You may copy and print this document solely for your own use in an Oracle training course The document may not be modified or altered in any way Except where your use constitutes "fair use" under copyright law, you may not use, share, download, upload, copy, print, display, perform, reproduce, publish, license, post, transmit, or distribute this document in whole or in part without the express authorization of Oracle The information contained in this document is subject to change without notice If you find any problems in the document, please report them in writing to: Oracle University, 500 Oracle Parkway, Redwood Shores, California 94065 USA This document is not warranted to be error-free Restricted Rights Notice If this documentation is delivered to the United States Government or anyone using the documentation on behalf of the United States Government, the following notice is applicable: U.S GOVERNMENT RIGHTS The U.S Government’s rights to use, modify, reproduce, release, perform, display, or disclose these training materials are restricted by the terms of the applicable Oracle license agreement and/or the applicable U.S Government contract Trademark Notice Oracle is a registered trademark of Oracle Corporation and/or its affiliates Other names may be trademarks of their respective owners Introduction Copyright © 2009, Oracle All rights reserved Lesson Objectives After completing this lesson, you should be able to the following: • Discuss the goals of the course • Identify the available environments that can be used in this course • Describe the database schema and tables that are used in the course • List the available documentation and resources I-2 Copyright © 2009, Oracle All rights reserved Lesson Aim PL/SQL supports many program constructs In this lesson, you review program units in the form of anonymous blocks, and you are introduced to named PL/SQL blocks Named PL/SQL blocks are also referred to as subprograms Named PL/SQL blocks include procedures and functions The tables from the Human Resources (HR) schema (which is used for the practices in this course) are briefly discussed The development tools for writing, testing, and debugging PL/SQL are listed Oracle Database 11g: Develop PL/SQL Program Units I - Lesson Agenda • • • I-3 Course objectives and course agenda The schema and appendixes used in this course and the available PL/SQL development environments in this course Oracle 11g documentation and additional resources Copyright © 2009, Oracle All rights reserved Oracle Database 11g: Develop PL/SQL Program Units I - Practice 9: Overview This practice covers the following topics: • Creating advanced triggers to manage data integrity rules • Creating triggers that cause a mutating table exception • Creating triggers that use package state to solve the mutating table problem - 25 Copyright © 2009, Oracle All rights reserved Practice 9: Overview In this practice, you implement a simple business rule for ensuring data integrity of employees’ salaries with respect to the valid salary range for their job You create a trigger for this rule During this process, your new triggers cause a cascading effect with triggers created in the practice section of the previous lesson The cascading effect results in a mutating table exception on the JOBS table You then create a PL/SQL package and additional triggers to solve the mutating table issue Oracle Database 11g: Develop PL/SQL Program Units - 25 ... PL/SQL development environments in this course Oracle 11 g documentation and additional resources Copyright © 2009, Oracle All rights reserved Oracle Database 11 g: Develop PL/SQL Program Units. .. this course) are briefly discussed The development tools for writing, testing, and debugging PL/SQL are listed Oracle Database 11 g: Develop PL/SQL Program Units I - Lesson Agenda • • • I-3 Course... PL/SQL package and additional triggers to solve the mutating table issue Oracle Database 11 g: Develop PL/SQL Program Units - 25
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