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Mastering ServiceNow by Martin Wood

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Building hierarchical tables

ServiceNow is built on a relational database. Instances hosted by ServiceNow use MySQL—a popular open source database that is robust, well featured, and scalable. Relational databases are relatively simple to understand, which is one of the reasons why they are most commonly used; data is held in a tabular format with each table storing information about a particular item. Relationships may exist between these items. Our database design described in the previous section has four tables, each relating to the others. For example, the Check-in table will relate to the Guest table to know who checked in.

Tip

The ServiceNow platform can run on almost any relational database, such as Oracle or SQL Server. But supporting different ...

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