Book Image

Developing Robust Date and Time Oriented Applications in Oracle Cloud

By : Michal Kvet
Book Image

Developing Robust Date and Time Oriented Applications in Oracle Cloud

By: Michal Kvet

Overview of this book

Proper date and time management is critical for the development and reliability of Oracle Databases and cloud environments, which are among the most rapidly expanding technologies today. This knowledge can be applied to cloud technology, on premises, application development, and integration to emphasize regional settings, UTC coordination, or different time zones. This practical book focuses on code snippets and discusses the existing functionalities and limitations, along with covering data migration to the cloud by emphasizing the importance of proper date and time management. This book helps you understand the historical background and evolution of ANSI standards. You’ll get to grips with data types, constructor principles, and existing functionalities, and focus on the limitations of regional parameters and time zones, which help in expanding business to other parts of the world. You’ll also explore SQL injection threats, temporal database architecture, using Flashback Technology to reconstruct valid database images from the past, time zone management, and UTC synchronization across regions. By the end of this book, you’ll be able to create and manage temporal systems, prevent SQL injection attacks, use existing functionalities and define your own robust solutions for date management, and apply time zone and region rules.
Table of Contents (26 chapters)
1
Part 1: Discovering Oracle Cloud
4
Part 2: Understanding the Roots of Date and Time
7
Part 3: Modeling, Storing, and Managing Date and Time
12
Part 4: Modeling Validity Intervals
17
Part 5: Building Robust and Secure Temporal Solutions
20
Part 6: Expanding a Business Worldwide Using Oracle Cloud

Summary

In this chapter, you learned the fundamental facts related to standardization. It is always good to understand these to start.

ISO 8601 was approved in 1988, and due to various consecutive enhancements, it provides a relevant summary of date and time management in information technology.

First, you learned about the Date value, formed by the day, month, and year elements, followed by the Time representation. After that, you learned how these values can be grouped into one specific DateTime reference, expressing one point in time. Afterward, solutions for modeling periods of time were proposed, focusing on durations and validity intervals. Until version 2019, there was no ability to model an unlimited validity interval. This was left to the user to manage and implement.

By accepting the roots defined by ISO 8601, the user gets an overview of the definition, management, and representation complexity, and is also aware of the limitations.

Although the Oracle database...