# Online Talk: Datalevin, a simple Datalog database for building stateful apps

**URL:** https://clojureverse.org/t/online-talk-datalevin-a-simple-datalog-database-for-building-stateful-apps/6278
**Category:** Meetups and Events
**Tags:** announcement, datalog
**Created:** [July 23, 2020, 10:02am UTC](https://clojureverse.org/t/online-talk-datalevin-a-simple-datalog-database-for-building-stateful-apps/6278 "2020-07-23T10:02:31Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![BrunoBonacci](https://clojureverse.org/user_avatar/clojureverse.org/brunobonacci/32/2122_2.png) [@BrunoBonacci](https://clojureverse.org/u/BrunoBonacci)
#### Post date: [July 23, 2020, 10:02am UTC](https://clojureverse.org/t/online-talk-datalevin-a-simple-datalog-database-for-building-stateful-apps/6278/1 "2020-07-23T10:02:31Z")

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Event link: [https://www.meetup.com/London-Clojurians/events/272098932/](https://www.meetup.com/London-Clojurians/events/272098932/)  
Time: 2020-09-22T17:30:00Z

[Huahai Yang](https://github.com/huahaiy) will be presenting **Datalevin** :

[https://github.com/juji-io/datalevin](https://github.com/juji-io/datalevin)

Huahai has been working in Clojure for 8 years. He currently works on conversational AI for Juji Inc. as the CTO. He’s passionate about solving hard problems with the simplest possible solutions.  
He also created [Editscript](https://github.com/juji-io/editscript) a library to extract the differences between two data structures.

**Datalevin** is a port of **Datascript** in-memory Datalog database to LMDB.  
The rationale is to have a simple and free Datalog query engine running on durable storage. Many developers prefer the flavor of Datalog popularized by Datomic® over any flavor of SQL, once they get to use it.

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### Author: ![BrunoBonacci](https://clojureverse.org/user_avatar/clojureverse.org/brunobonacci/32/2122_2.png) [@BrunoBonacci](https://clojureverse.org/u/BrunoBonacci)
#### Post date: [October 1, 2020, 2:24pm UTC](https://clojureverse.org/t/online-talk-datalevin-a-simple-datalog-database-for-building-stateful-apps/6278/2 "2020-10-01T14:24:48Z")

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Hi all,

here the recording of this event.

[![](https://img.youtube.com/vi/-5SrIUK6k5g/hqdefault.jpg "Datalevin - simple durable Datalog database to embed in Clojure stateful apps - Huahai Yang") ](https://www.youtube.com/watch?v=-5SrIUK6k5g)

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### Author: ![system](https://clojureverse.org/uploads/default/original/2X/5/51079bf9e4b7d9466242c06cf1e43b9f8bd6da14.png) [@system](https://clojureverse.org/u/system)
#### Post date: [April 2, 2021, 2:24am UTC](https://clojureverse.org/t/online-talk-datalevin-a-simple-datalog-database-for-building-stateful-apps/6278/3 "2021-04-02T02:24:50Z")

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