DBMS > FoundationDB vs. LeanXcale vs. Lovefield vs. Nebula Graph

System Properties Comparison FoundationDB vs. LeanXcale vs. Lovefield vs. Nebula Graph

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Editorial information provided by DB-Engines

Name

Created as commercial project in 2013, FoundationDB has been acquired by Apple in March 2015 and was withdrawn from the market. As a consequence, the product was removed from the DB-Engines ranking. In April 2018, Apple open-sourced FoundationDB and it therefore reappears in the ranking.

Description

Ordered key-value store. Core features are complimented by layers.

A highly scalable full ACID SQL database with fast NoSQL data ingestion and GIS capabilities

Embeddable relational database for web apps written in pure JavaScript

A distributed, linear scalable, high perfomant Graph DBMS

Primary database model

Document store

supported via specific layer
Key-value store
Relational DBMS

supported via specific SQL-layer

Key-value store
Relational DBMS

Relational DBMS

Graph DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	1.48
Rank	#142	Overall
	#24	Document stores
	#27	Key-value stores
	#70	Relational DBMS

Score	0.17
Rank	#297	Overall
	#43	Key-value stores
	#138	Relational DBMS

Score	0.23
Rank	#286	Overall
	#134	Relational DBMS

Score	1.11
Rank	#168	Overall
	#15	Graph DBMS

Website

www.foundationdb.org

www.leanxcale.com

google.github.io/lovefield

github.com/vesoft-inc/nebula
nebula-graph.io

Technical documentation

apple.github.io/foundationdb

github.com/google/lovefield/blob/master/docs/spec_index.md

docs.nebula-graph.io

Developer

FoundationDB

LeanXcale

Google

Vesoft Inc.

Initial release

2013

2015

2014

2019

Current release

6.2.28, November 2020

2.1.12, February 2017

License

Commercial or Open Source

Open Source

Apache 2.0

commercial

Open Source

Apache 2.0

Open Source

Apache Version 2.0 + Common Clause 1.0

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

C++

JavaScript

C++

Server operating systems

Linux
OS X
Windows

server-less, requires a JavaScript environment (browser, Node.js)

tested with Chrome, Firefox, IE, Safari

Linux

Data scheme

schema-free

some layers support schemas

yes

Strong typed schema

Typing

predefined data types such as float or date

some layers support typing

yes

XML support

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

Secondary indexes

yes

Nebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.

SQL

Support of SQL

supported in specific SQL layer only

yes

through Apache Derby

SQL-like query language

via JavaScript builder pattern

SQL-like query language

APIs and other access methods

JDBC
Kafka Connector
ODBC
proprietary key/value interface
Spark Connector

Browser interface
console (shell)
Proprietary native API
Query language nGQL

Supported programming languages

.Net
C
C++
Go
Java
JavaScript

Node.js
PHP
Python
Ruby
Swift

C
Java
Scala

JavaScript

C++
Go
Java
Python

Server-side scripts

Stored procedures

in SQL-layer only

Triggers

Using read-only observers

Partitioning methods

Methods for storing different data on different nodes

Sharding

none

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

yes

none

Causal Clustering using Raft protocol

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Linearizable consistency

Immediate Consistency

Foreign keys

Referential integrity

in SQL-layer only

yes

Relationships in graphs

Transaction concepts

Support to ensure data integrity after non-atomic manipulations of data

ACID

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

yes, by using IndexedDB or the cloud service Firebase Realtime Database

yes

using RocksDB

In-memory capabilities

Is there an option to define some or all structures to be held in-memory only.

yes

using MemoryDB

yes

User concepts

Access control

Role-based access control

More information provided by the system vendor

Specific characteristics

Full ACID and full SQL operational database with analytical queries over operational...
» more

Nebula Graph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more

Competitive advantages

Linear scalability upto 100s of nodes (tested with 100 nodes and TPC-C).
» more

Nebula Graph boasts the world's only graph database solution that is able to host...
» more

Typical application scenarios

Hybrid Transactional-Analytical Processing (HTAP) requiring an operational database...
» more

Social networking Fraud detection Knowledge graph Data warehouse management Anti...
» more

Key customers

banking/finance/fintech, telco, insurance, traveltech, M2M/IoT, retail
» more

Currently we have some top internet companies in China implementing Nebula Graph...
» more

Market metrics

15 beta testers
» more

At our very early stage, Nebula Graph has already received 3.5k stars and thousands...
» more

Licensing and pricing models

annual fee covering license and support based on number of physical cores
» more

Nebula Graph is open source and free to use under Apache 2.0 license and Common Clause...
» more

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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More resources

Recent citations in the news

IBM Cloudant pulls plan to fund new foundational layer for CouchDB
15 March 2022, The Register

FoundationDB, a very interesting NoSQL database owned by Apple, is now an open-source project
19 April 2018, GeekWire

Key Value Database Market Report Shows Demand to Boost Industry Growth from 2022 to 2027| The Apache Software Foundation, Redis Labs, Aerospike, Couchbase, Amazon Web Services (AWS), etc.
10 June 2022, Digital Journal

Apple Acquires Durable Database Company FoundationDB
24 March 2015, TechCrunch

FoundationDB's Record Layer Supports Relational Database Semantics, Schema Management and Indexing
10 February 2019, InfoQ.com

provided by Google News

Nebula Graph Takes Another Step to Lead Global Graph Database Market With the Release of V3.0.0
18 February 2022, MarTech Series

Third Time Is The Charm For Nebula Graph Database
19 January 2021, The Next Platform

Nebula Graph Joins Database Race
15 June 2020, Datanami

The World's Most Capable Graph Database, Nebula Graph™, Debuts for Unmatched Big Data Analytics Discovery
29 June 2020, PR Web

Graph Database Startup Vesoft Seeks Funds at $1 Billion Value
5 July 2021, Bloomberg

provided by Google News

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