Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
Credits
Notice
About the Author
About the Reviewer
www.PacktPub.com
Preface

Using GlideRecord (and its friends)


The previous two chapters demonstrated that ServiceNow is built around data. Background scripts, and scripts in general, can use the excellent database connectivity capabilities built into ServiceNow to easily access whatever information we want. GlideRecord is instrumental in doing this.

GlideRecord is a class that lets you work with a database table. With it, you can create, read, or update records in a database. In general, you work one record at a time, iterating through a result set.

It is easy to use, but I recommend reviewing the basics from the product documentation or a scripting course. In this chapter, we'll quickly run through the basics and start to explore the gotchas as well as some very interesting features that are misunderstood.

Tip

For full details, investigate the documentation at https://developer.servicenow.com/app.do#!/api_doc?v=helsinki&type=server&scoped=true&to=class__scoped_gliderecord__helsinki.

Let's run some code in...