# Transaction Isolation Level

> A technique for choosing how much concurrent transactions see of each other's uncommitted and recent writes.

Record: `lexicon:transaction-isolation-level`
Kind: technique
Layer: [Atomic Boundary](https://banes-lab.com/records/layer/atomic-boundary.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-transaction-isolation-level

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Merge Policy](https://banes-lab.com/records/lexicon/merge-policy.md) and before [Make Immutable](https://banes-lab.com/records/lexicon/make-immutable.md).

## Category

- [Transactions / State / Concurrency](https://banes-lab.com/records/lexicon-category/transactions-state-concurrency.md)

## Refactors

- [Lost Update](https://banes-lab.com/records/architecture/lost-update.md)
- [Isolation](https://banes-lab.com/records/architecture/isolation.md)

## Linked from

- [Anti-patterns](https://banes-lab.com/ontology/principles/architecture-category-anti-patterns.md)
- [Transactions / State / Concurrency](https://banes-lab.com/ontology/principles/architecture-category-transactions-state-concurrency.md)