Termius tutorials software#
Termius tutorials series#

^ 'DataChemist wants to make sense of big-picture intelligence in the data analytics 'arms race' '.

^ 'TerminusDB Server v10.0.20 Beta Release Notes'.

This demonstrates a simple query which creates a document in the database, along with labels and cardinality constraints. This gives a relatively straightforward human-readable format which can be easily stored in TerminusDB itself. It allows TerminusDB to treat the database as a document store or a graph interchangeably, and provides query features to make relationship traversals easy. WOQL (web object query language) is a datalog-based query language.

It also has a Python client for the TerminusDB RESTful API and the pythonic version of the web object query language, WOQLpy. TerminusDB has a promise based client for the browser and node.js it is available through the npm registry, or can be directly included in web-sites. This provides a rich modelling language which enables constraints on the allowable shapes in the graph. It now uses a JSON schema interface allowing users to build schemas using a simple JSON format. For schema design, TerminusDB used the OWL language until version 10.0. TerminusDB uses the XSD datatypes as its universe of concrete values. The names for nodes and labels are drawn from a set of IRIs ( Internationalized Resource Identifiers). This standard specifies finite labelled directed graphs which are parameterized in some universe of datatypes. This allows all of the Git semantics to be used in TerminusDB.

Termius tutorials software#

The design of the underlying data structure, which is implemented in a Rust library, uses a succinct data structures and delta encoding approach drawing inspiration from software source control systems like Git.

TerminusDB is an in-memory graph database management system with a rich query language. TerminusDB uses a CowDuck mascot - the motif finds its origins in the examples used by core engineer Matthijs van Otterdijk when first demonstrating the append only immutable data store Main features

Termius tutorials series#

It is also named after the home planet of the Foundation in the series of science-fiction novel by Issac Asimov. TerminusDB is named after the Roman God of Boundaries, Terminus.

JSON documents can refer to other documents in the graph.

Radically simplified document interface.

New branch management actions: squash, reset, delete, optimize.Extraction or filtering of types from arbitrary nodes.Default branch is now called main and not master.Reset API allows reseting branch to arbitrary commit.With v4.0, which was released in December 2020, TerminusDB switched to the Apache 2.0 license. TerminusDB was first released under the GPLv3 licence with the client libraries released with the Apache 2 licence. Version 1.0 was released in October 2019. The results of some aspects of this research, focused on the relationship between complex societies and moralizing gods, appeared in Nature. TerminusDB is also the database behind the associated Institute for Economics and Peace and Oxford University historical peace index project. This work has been reported in several major newspapers. Seshat has been working with the development team from the ALIGNED project onward. Seshat is an international scientific research project of the nonprofit Evolution Institute which uses TerminusDB as data infrastructure. An open-access e-book entitled Engineering Agile Big-Data Systems was published on completion of the ALIGNED project. Starting in Trinity College Dublin, the development team behind TerminusDB ran the Horizon 2020 project ALIGNED that worked from February 2015 to January 2018. TerminusDB, previously known as DataChemist, was founded in Dublin, Ireland.