servicenow-gliderecord

What problem does it solve?

GlideRecord and GlideAggregate are core to ServiceNow server-side scripting, but improper usage causes performance problems and fragile code. This guide defines best practices to ensure safe, efficient data access and manipulation.

Core Features & Use Cases

• Enforces getValue and setValue for all reads/writes to maintain type safety.
• Requires query() before iterating with next() and discourages nested queries inside loops.
• Prefers GlideAggregate for counting and aggregation over manual record iteration.
• Provides practical patterns for existence checks, null handling, and update/insert/delete operations.
• Real-world scenarios include bulk reads of incidents, aggregation by priority, and safe updates with minimized data loads.

Quick Start

Write a minimal GlideRecord script that queries active incidents, reads a field with getValue, and updates priority with setValue.