***

title: "Data Access"
generated: true
---------------

- [Calculated](/current/core/reference/typescript-api/data-access/calculated)
- [CalculatedPropertySubscriber](/current/core/reference/typescript-api/data-access/calculated-property-subscriber)
- [EntityHydrator](/current/core/reference/typescript-api/data-access/entity-hydrator)
- [GetEntityOrThrowOptions](/current/core/reference/typescript-api/data-access/get-entity-or-throw-options)
- [HydrateOptions](/current/core/reference/typescript-api/data-access/hydrate-options)
- [ListQueryBuilder](/current/core/reference/typescript-api/data-access/list-query-builder)
- [TransactionalConnection](/current/core/reference/typescript-api/data-access/transactional-connection)