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DBMS > AlaSQL vs. Cassandra vs. IBM Db2 Event Store vs. Neo4j vs. RavenDB

System Properties Comparison AlaSQL vs. Cassandra vs. IBM Db2 Event Store vs. Neo4j vs. RavenDB

Editorial information provided by DB-Engines
NameAlaSQL  Xexclude from comparisonCassandra  Xexclude from comparisonIBM Db2 Event Store  Xexclude from comparisonNeo4j  Xexclude from comparisonRavenDB  Xexclude from comparison
DescriptionJavaScript DBMS libraryWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessDistributed Event Store optimized for Internet of Things use casesScalable, ACID-compliant graph database designed with a high-performance distributed cluster architecture, available in self-hosted and cloud offeringsOpen Source Operational and Transactional Enterprise NoSQL Document Database
Primary database modelDocument store
Relational DBMS
Wide column storeEvent Store
Time Series DBMS
Graph DBMSDocument store
Secondary database modelsVector DBMS infostarting with release V5Graph DBMS
Spatial DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#260  Overall
#40  Document stores
#121  Relational DBMS
Score101.89
Rank#12  Overall
#1  Wide column stores
Score0.19
Rank#323  Overall
#2  Event Stores
#28  Time Series DBMS
Score44.46
Rank#23  Overall
#1  Graph DBMS
Score2.92
Rank#101  Overall
#18  Document stores
Websitealasql.orgcassandra.apache.orgwww.ibm.com/­products/­db2-event-storeneo4j.comravendb.net
Technical documentationgithub.com/­AlaSQL/­alasqlcassandra.apache.org/­doc/­latestwww.ibm.com/­docs/­en/­db2-event-storeneo4j.com/­docsravendb.net/­docs
DeveloperAndrey Gershun & Mathias R. WulffApache Software Foundation infoApache top level project, originally developped by FacebookIBMNeo4j, Inc.Hibernating Rhinos
Initial release20142008201720072010
Current release4.1.3, July 20232.05.20, May 20245.4, July 2022
License infoCommercial or Open SourceOpen Source infoMIT-LicenseOpen Source infoApache version 2commercial infofree developer edition availableOpen Source infoGPL version3, commercial licenses availableOpen Source infoAGPL version 3, commercial license available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Astra DB: Multi-cloud DBaaS built on Apache Cassandra.Neo4j Aura: Neo4j’s fully managed cloud service: The zero-admin, always-on graph database for cloud developers.
Implementation languageJavaScriptJavaC and C++Java, ScalaC#
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)BSD
Linux
OS X
Windows
Linux infoLinux, macOS, Windows for the developer additionLinux infoCan also be used server-less as embedded Java database.
OS X
Solaris
Windows
Linux
macOS
Raspberry Pi
Windows
Data schemeschema-freeschema-freeyesschema-free and schema-optionalschema-free
Typing infopredefined data types such as float or datenoyesyesyesno
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonono
Secondary indexesnorestricted infoonly equality queries, not always the best performing solutionnoyes infopluggable indexing subsystem, by default Apache Luceneyes
SQL infoSupport of SQLClose to SQL99, but no user access control, stored procedures and host language bindings.SQL-like SELECT, DML and DDL statements (CQL)yes infothrough the embedded Spark runtimenoSQL-like query language (RQL)
APIs and other access methodsJavaScript APIProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
ADO.NET
DB2 Connect
JDBC
ODBC
RESTful HTTP API
Bolt protocol
Cypher query language
Java API
Neo4j-OGM infoObject Graph Mapper
RESTful HTTP API
Spring Data Neo4j
TinkerPop 3
.NET Client API
F# Client API
Go Client API
Java Client API
NodeJS Client API
PHP Client API
Python Client API
RESTful HTTP API
Supported programming languagesJavaScriptC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
C
C#
C++
Cobol
Delphi
Fortran
Go
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Scala
Visual Basic
.Net
Clojure
Elixir
Go
Groovy
Haskell
Java
JavaScript
Perl
PHP
Python
Ruby
Scala
.Net
C#
F#
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Server-side scripts infoStored proceduresnonoyesyes infoUser defined Procedures and Functionsyes
Triggersyesyesnoyes infovia event handleryes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infono "single point of failure"Shardingyes using Neo4j FabricSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infoRepresentation of geographical distribution of servers is possibleActive-active shard replicationCausal Clustering using Raft protocol infoavailable in in Enterprise Version onlyMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnonoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual ConsistencyCausal and Eventual Consistency configurable in Causal Cluster setup
Immediate Consistency in stand-alone mode
Default ACID transactions on the local node (eventually consistent across the cluster). Atomic operations with cluster-wide ACID transactions. Eventual consistency for indexes and full-text search indexes.
Foreign keys infoReferential integrityyesnonoyes infoRelationships in graphsno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infoonly for local storage and DOM-storageno infoAtomicity and isolation are supported for single operationsnoACIDACID, Cluster-wide transaction available
Concurrency infoSupport for concurrent manipulation of datayesNo - written data is immutableyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, SQL.JS or proprietary FileStorageyesYes - Synchronous writes to local disk combined with replication and asynchronous writes in parquet format to permanent shared storageyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlnoAccess rights for users can be defined per objectfine grained access rights according to SQL-standardUsers, roles and permissions. Pluggable authentication with supported standards (LDAP, Active Directory, Kerberos)Authorization levels configured per client per database
More information provided by the system vendor
AlaSQLCassandraIBM Db2 Event StoreNeo4jRavenDB
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Neo4j delivers graph technology that has been battle tested for performance and scale...
» more
Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
» more
Neo4j is the market leader, graph database category creator, and the most widely...
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Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
» more
Real-Time Recommendations Master Data Management Identity and Access Management Network...
» more
Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more
Over 800 commercial customers and over 4300 startups use Neo4j. Flagship customers...
» more
Market metricsCassandra is used by 40% of the Fortune 100.
» more
Neo4j boasts the world's largest graph database ecosystem with more than 140 million...
» more
Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
» more
GPL v3 license that can be used all the places where you might use MySQL. Neo4j Commercial...
» more
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