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

Chapter 11 – Temporal Database Concepts

  1. D is correct. The model takes two layers. The first is formed of the primary key and references. Individual object states are temporally oriented and part of the second layer. From the temporal perspective, historical, current, and future valid data can be managed.
  2. A is correct. A conventional system stores only current valid data. Any change invokes physical replacement of the original state.
  3. C is correct. The aspect of relevance is related to identifying significant changes. Transaction support covers the integrity of transaction rules in a temporal environment. The aspect of correctness relates to extended temporal data integrity, like a temporal ISA hierarchy. The aspect of limited temporal usability is related to the important loss of historical states and future plan management.
  4. C is correct. Three dimensions are covered – Insert, Preprocessing, and Load.
  5. B is correct. In this case, the best option is...