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Beschreibung
SQL has been the default language of application databases for half a century. That default is now holding application state back.

Modern applications rarely fit neatly into SQL's table-first model. A product may need transactions, graph relationships, documents, full-text search, vector similarity, and persistent AI memory in the same workflow. The usual response is to add ORM layers, side indexes, vector stores, and auxiliary services-making ordinary application data harder to model, query, and change.

Datalevin offers a different foundation. It is a compact open-source database that stores application state as durable facts and queries those facts with Datalog. Built on LMDB, it combines ACID transactions, key-value storage, relational and graph relationships, documents, full-text search, vector search, and derived knowledge in one logical database.

This guide makes replacing SQL at the center of application systems practical. It teaches Datalevin as a complete database rather than only a query language, covering its data model, transactions, schemas, identities, indexes, queries, performance, deployment, operations, and failure modes.

You will learn how to:

This guide is for engineers who build data-intensive applications and are ready to stop treating SQL as inevitable. You may be building an embedded application, a backend service, a knowledge graph, a search-heavy product, a durable workflow system, or an AI application that needs persistent memory.

Basic familiarity with transactions, indexes, schemas, and querying is helpful. No previous Datalog experience is required; the guide introduces Datalog from first principles and develops it throughout the modeling, search, performance, and intelligent-systems chapters.
SQL has been the default language of application databases for half a century. That default is now holding application state back.

Modern applications rarely fit neatly into SQL's table-first model. A product may need transactions, graph relationships, documents, full-text search, vector similarity, and persistent AI memory in the same workflow. The usual response is to add ORM layers, side indexes, vector stores, and auxiliary services-making ordinary application data harder to model, query, and change.

Datalevin offers a different foundation. It is a compact open-source database that stores application state as durable facts and queries those facts with Datalog. Built on LMDB, it combines ACID transactions, key-value storage, relational and graph relationships, documents, full-text search, vector search, and derived knowledge in one logical database.

This guide makes replacing SQL at the center of application systems practical. It teaches Datalevin as a complete database rather than only a query language, covering its data model, transactions, schemas, identities, indexes, queries, performance, deployment, operations, and failure modes.

You will learn how to:

This guide is for engineers who build data-intensive applications and are ready to stop treating SQL as inevitable. You may be building an embedded application, a backend service, a knowledge graph, a search-heavy product, a durable workflow system, or an AI application that needs persistent memory.

Basic familiarity with transactions, indexes, schemas, and querying is helpful. No previous Datalog experience is required; the guide introduces Datalog from first principles and develops it throughout the modeling, search, performance, and intelligent-systems chapters.
Über den Autor
Dr. Huahai Yang is the creator and maintainer of Datalevin. He co-founded Juji, where his work on intelligent applications required fast retrieval, persistent memory, and flexible representations of user and agent state. He holds a Ph.D. from the University of Michigan, Ann Arbor, and has served as a faculty member at University at Albany, SUNY, and as a research staff member at IBM Almaden Research Center.
Details
Erscheinungsjahr: 2026
Genre: Importe, Informatik
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
ISBN-13: 9798996235902
Sprache: Englisch
Einband: Kartoniert / Broschiert
Autor: Yang, Huahai
Hersteller: Calero Creek Press
Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, D-36244 Bad Hersfeld, gpsr@libri.de
Maße: 254 x 178 x 26 mm
Von/Mit: Huahai Yang
Erscheinungsdatum: 20.07.2026
Gewicht: 0,916 kg
Artikel-ID: 136291409

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