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You're reading from  Oracle Advanced PL/SQL Developer Professional Guide

Product typeBook
Published inMay 2012
Reading LevelExpert
PublisherPackt
ISBN-139781849687225
Edition1st Edition
Languages
SQL
Tools
Oracle Database
Concepts
Database Programming
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Author (1)
Saurabh K. Gupta
Saurabh K. Gupta
author image
Saurabh K. Gupta

Saurabh K. Gupta is a seasoned database technologist with extensive experience in designing high performance and highly available database applications. His technology focus has been centered around Oracle Database architecture, Oracle Cloud platform, Database In-Memory, Database Consolidation, Multitenant, Exadata, Big Data, and Hadoop. He has authored the first edition of this book. He is an active speaker at technical conferences from Oracle Technology Network, IOUG Collaborate'15, AIOUG Sangam, and Tech Days. Connect with him on his twitter handle (or SAURABHKG) or through his technical blog www.sbhoracle. wordpress.com, with comments, suggestions, and feedback regarding this book.
Read more about Saurabh K. Gupta

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Determining identifier types and usages

All the local declarations of a program unit are categorized as identifiers. An identifier's declaration locates a memory on the server and keeps it busy until the program unit is executed or terminated. Redundant identifiers must be recognized within a program so as to restrict them from holding a chunk of memory for no operation.

Oracle provides a tool known as PL/Scope to monitor the activities of identifiers in a program. It is one of the new features in Oracle 11g.

The PL/Scope tool

The PL/Scope tool compiles and captures the information of the identifiers declared and used in a program. Once the feature is enabled, the language compiler filters out the identifier's information and stores it in a dictionary view called USER_IDENTIFIERS. An identifier is recognized by its name, type, and usage.

Let us examine some of the key features of the PL/Scope tool:

  • Only unwrapped program units can use the PL/Scope tool.

  • The feature can be enabled by setting...

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Oracle Advanced PL/SQL Developer Professional Guide
Published in: May 2012Publisher: PacktISBN-13: 9781849687225
© 2012 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Saurabh K. Gupta

Saurabh K. Gupta is a seasoned database technologist with extensive experience in designing high performance and highly available database applications. His technology focus has been centered around Oracle Database architecture, Oracle Cloud platform, Database In-Memory, Database Consolidation, Multitenant, Exadata, Big Data, and Hadoop. He has authored the first edition of this book. He is an active speaker at technical conferences from Oracle Technology Network, IOUG Collaborate'15, AIOUG Sangam, and Tech Days. Connect with him on his twitter handle (or SAURABHKG) or through his technical blog www.sbhoracle. wordpress.com, with comments, suggestions, and feedback regarding this book.
Read more about Saurabh K. Gupta

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