gliderecord-patterns

To query ServiceNow records safely, use GlideRecord best practices like retrieving single records by sys_id, applying setLimit to cap results, and using encoded queries to prevent oversized data retrieval and performance degradation.

The best way to retrieve a single ServiceNow record is by looking up its sys_id directly, which is precise and efficient. You can also query by a specific field value to quickly fetch the exact record needed.

Yes, you can use GlideAggregate instead of standard GlideRecord queries for faster, scalable data access. GlideAggregate is specifically recommended for performing counts and aggregate functions across ServiceNow tables.

For bulk queries across incident and task tables, use GlideRecord with addQuery and orderByDesc. Apply setLimit to restrict the result set and avoid N+1 queries by retrieving records in batches for better performance.

GlideRecord limitations include potential performance bottlenecks with oversized results and N+1 query patterns. You must enforce proper error handling, apply setLimit, and use encoded queries to ensure safe insert, update, and delete operations.