# Batch Fetch

> A technique for loading the related data for many items in one query or call instead of one per item.

Record: `lexicon:batch-fetch`
Kind: technique
Layer: [Performance Core](https://banes-lab.com/records/layer/performance-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-batch-fetch

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Cache Invalidation on Write](https://banes-lab.com/records/lexicon/cache-invalidation-on-write.md) and before [Externalize Session State](https://banes-lab.com/records/lexicon/externalize-session-state.md).

## Category

- [Scalability / Performance / Optimization](https://banes-lab.com/records/lexicon-category/scalability-performance-optimization.md)

## Refactors

- [Chatty Interface](https://banes-lab.com/records/architecture/chatty-interface.md)
- [N Plus One Query](https://banes-lab.com/records/architecture/n-plus-one-query.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)