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

Part 3: Modeling, Storing, and Managing Date and Time

As the title of this part denotes, we will be discussing how to model, store, and generally manage date and time values. First, the available date- and time-oriented data types in Oracle are introduced. The Oracle RDBMS provides a honed-in solution because the DATE data type applies second granularity. Besides that, the TIMESTAMP data type is available to serve finer precision, optionally extended by the time zone perspective.

Once you are familiar with the available data types, it is possible to dig deeper into date and time value definitions by focusing on the constructor functions and conversion and element extraction functions, specifically looking at reliability and integrity issues. Moreover, in this part, National Language Support (NLS) parameters, making your systems adaptable to regions, are discussed. Namely, what is the first day of the week? Is it Sunday or Monday? You will get insights into server as well as client...