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

This chapter dealt with interval representation and type relationships. In the first part, transformation principles across time intervals were stated and demonstrated by adding the smallest time element to the interval. Then, the focus shifted to the positional and temporal relationships by discussing interval interaction types. These positions are crucial for state monitoring in a timeline.

Oracle Database provides a PERIOD structure that applies to the table definition expressing the duration forming temporal validity. This chapter dealt with its concepts, modeling, and definition. By reading this chapter, you will have become familiar with using the data dictionary to evaluate and identify the PERIOD structure for a particular table that already exists. The PERIOD structure is associated with the ENABLE_AT_VALID_TIME function of the DBMS_FLASHBACK_ARCHIVE package. By using that function, temporal principles can be applied. It allows you to highlight current valid states...