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Modernizing Oracle Tuxedo Applications with Python

Modernizing Oracle Tuxedo Applications with Python

By : Kalvans
4.8 (8)
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Modernizing Oracle Tuxedo Applications with Python

Modernizing Oracle Tuxedo Applications with Python

4.8 (8)
By: Kalvans

Overview of this book

Despite being developed in the 1980s, Oracle Tuxedo still runs a significant part of critical infrastructure and is not going away any time soon. Modernizing Oracle Tuxedo Applications with Python will help you get to grips with the most important Tuxedo concepts by writing Python code. The book starts with an introduction to Oracle Tuxedo and guides you in installing its latest version and Python bindings for Tuxedo on Linux. You'll then learn how to build your first server and client, configure Tuxedo, and start running an application. As you advance, you'll understand load balancing and work with the BBL server, which is at the heart of a Tuxedo application. This Tuxedo book will also cover Boolean expressions and different ways to export Tuxedo buffers for storage and transmission, before showing you how to implement servers and clients and use the management information base to change the configuration dynamically. Once you've learned how to configure Tuxedo for transactions and control them in application code, you'll discover how to use the store-and-forward functionality to reach destinations and use an Oracle database from a Tuxedo application. By the end of this Oracle Tuxedo book, you'll be able to perform common Tuxedo programming tasks with Python and integrate Tuxedo applications with other parts of modern infrastructure.
Table of Contents (18 chapters)
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1
Section 1: The Basics
6
Section 2: The Good Bits
12
Section 3: Integrations

Preparing the database

At this point, you should have an Oracle Database running on a server or inside a Docker container. We can proceed by making sure the Tuxedo application can access the database. To be able to connect to a remote Oracle Database, we have to install the following Oracle Database client libraries:

sudo yum -y install oracle-instantclient19.9-basic
sudo yum -y install oracle-instantclient19.9-devel
sudo yum -y install oracle-instantclient19.9-sqlplus

Once the libraries have been successfully installed, we can install the cx_Oracle library for accessing the database from Python as follows:

sudo pip3 install cx_oracle

We have everything ready for writing the code now but we need to do some preparations inside the database as well. If you already have a database user you want to use for the application, skip all commands until step 3. Otherwise, let's create a new database user as follows:

  1. We need a regular database user for our application...

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