Oracle PL/SQL Stored Program Units — A 3-Day Course

 Open Public Course Closed In-House Course

Synopsis

This course provides practical experience in developing and writing triggers, functions, procedures and packages. It also introduces some of the Oracle-supplied packages. Together with the PL/SQL course, this course is suitable for delegates intending to sit the Oracle examination #1Z0-147: Program with PL/SQL. Examinations are not included as part of the course and anyone intending to sit examinations should check directly on the Oracle website for up to date requirements.

Course Objectives

The delegates will practise:

• Implementing various types of trigger
• Creating, managing and invoking stored procedures
• Creating, managing and executing stored functions
• Developing and using packages
• Using package features and constructs effectively
• Wrapping packages
• Using Cursor Variables
• Using records and tables or associative arrays in packages
• Implementing Bulk Binding and Bulk Collecting techniques
• Managing program unit dependencies
• Implementing Native Compilation and Compile-time Warnings
• Implementing Native Dynamic SQL
• Using a variety of Oracle-supplied packages

Suitable For

This course is intended for:

• Oracle database administrators and software development personnel who need to write new, or maintain existing, PL/SQL triggers, program units and packages.

Prerequisites

Practical experience of Oracle SQL and SQL*Plus or SQL Developer and a good working knowledge of the fundamentals of the PL/SQL programming language are required. This can be gained by attendance on the Oracle PL/SQL and SQL courses.

Publicly scheduled dates, locations, and prices

Outline Course Contents

Triggers

• DML Triggers
• The CREATE TRIGGER Statement
• Writing Trigger Code
• INSTEAD OF Triggers
• Calling Procedures from Triggers
• Coding Restrictions
• System Event and DDL Triggers
• Attribute Functions
• Compound Triggers
• Create Trigger Follows Clause
• Managing Triggers
• Privileges Required for Triggers
• Dictionary Information Concerning Triggers

Procedures

• What is a Procedure?
• The CREATE PROCEDURE Statement
• Procedure Parameters
• Invoking Procedures
• Local Subprograms
• Named Association Parameter Passing
• Definer's Rights and Invoker's Rights
• Autonomous Transactions
• Managing Procedures
• Privileges Required for Procedures
• Dictionary Information Concerning Procedures
• The Call Statement

Functions

• What is a Function?
• The CREATE FUNCTION Statement
• Executing Functions
• Invoker's Rights
• Autonomous Transactions
• DBMS_OUTPUT
• Using Functions in SQL Statements
• Deterministic and Parallel-Enabled Functions
• Function Result Cache
• Managing Functions
• Privileges Required for Functions
• Dictionary Information Concerning Functions

Packages

• What is a Package?
• Public and Private Components
• Creating a Package
• Example Package
• Persistent States
• One-time-only Procedures
• Overloading
• Purity Level Checking
• Forward Declarations
• Wrapping Packages
• Managing Packages
• Privileges Required for Packages
• Dictionary Information Concerning Packages

Using PL/SQL Records and Tables in Packages

• Overview of PL/SQL Records, Index-by Tables and Associative Arrays
• Using PL/SQL Records and Tables in Packages
• Table Built-in Functions
• The NOCOPY Hint
• Bulk Collection
• Bulk Binding DML Statements

Cursor Variables (Ref Cursors)

• Declare Cursor Variables
• Use Cursor Variables
• Open and Close Cursor Variables
• Fetch Rows
• Cursor Variable Attributes
• Pass Cursor Variables as Parameters
• Refcursor Datatype

Managing Dependencies

• Dependent and Referenced Objects
• Invalidation and Recompilation
• Local and Remote Dependencies
• Recompilation Considerations

Native Compilation and Compile-Time Warnings

• Introduction
• Native Compilation
• Automatic Recompilation
• Automatic Program Sublining
• WHEN OTHERS ?THEN NULL
• Data Dictionary Information
• Compiler Warning Categories
• Using the DBMS_WARNING Package

Oracle-Supplied Packages

• Overview of Oracle-Supplied Packages
• Using the DBMS_SQL Package
• Using Native Dynamic SQL
• The DBMS_METADATA Package
• The UTL_MAIL Package
• The DBMS_APPLICATION_INFO Package
• The DBMS_UTILITY Package
• Scheduling Jobs using the DBMS_SCHEDULER Package

Creating a Database Access Descriptor

• The http Package
• How to create a DAD

Handling Large Objects

• Introduction
• Character Large Objects - CLOBs
• Binary Large Objects - BLOBs
• External Large Objects - BFILEs
• Temporary LOBs
• Using the DBMS_LOB Package to handle LOBs Programmatically