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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
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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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Understanding external routines

An external routine allows a program, which is written in a language other than PL/SQL, to be used in PL/SQL. For instance, a program logic written in Java can be invoked and used from PL/SQL. The program in non-PL/SQL language is referred to as external programs. The favorable situations for the use of external routines may arise in an application development environment which follows strict regimentation of the client, API and database layers. On broader terms, an external program has to be stored as a shared library on the server followed by its publishing through call specification. Once the external routine is published, it is ready to be used in PL/SQL.

Within the scope of this chapter, we will discuss the invocation of external programs written in C and Java language from PL/SQL.

Architecture of external routines

Before we get into the core methodology followed for external routines, we will discuss some of the crucial components of Oracle architectural...

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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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