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DBMS > Alibaba Cloud PolarDB vs. Cassandra vs. H2 vs. JanusGraph vs. Microsoft SQL Server

System Properties Comparison Alibaba Cloud PolarDB vs. Cassandra vs. H2 vs. JanusGraph vs. Microsoft SQL Server

Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonCassandra  Xexclude from comparisonH2  Xexclude from comparisonJanusGraph infosuccessor of Titan  Xexclude from comparisonMicrosoft SQL Server  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.Wide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.A Graph DBMS optimized for distributed clusters infoIt was forked from the latest code base of Titan in January 2017Microsofts flagship relational DBMS
Primary database modelRelational DBMSWide column storeRelational DBMSGraph DBMSRelational DBMS
Secondary database modelsVector DBMS infostarting with release V5Spatial DBMSDocument store
Graph DBMS
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.59
Rank#241  Overall
#110  Relational DBMS
Score101.89
Rank#12  Overall
#1  Wide column stores
Score8.13
Rank#49  Overall
#31  Relational DBMS
Score1.94
Rank#129  Overall
#12  Graph DBMS
Score824.29
Rank#3  Overall
#3  Relational DBMS
Websitewww.alibabacloud.com/­product/­polardbcassandra.apache.orgwww.h2database.comjanusgraph.orgwww.microsoft.com/­en-us/­sql-server
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewcassandra.apache.org/­doc/­latestwww.h2database.com/­html/­main.htmldocs.janusgraph.orglearn.microsoft.com/­en-US/­sql/­sql-server
DeveloperAlibabaApache Software Foundation infoApache top level project, originally developped by FacebookThomas MuellerLinux Foundation; originally developed as Titan by AureliusMicrosoft
Initial release2008200520171989
Current release4.1.3, July 20232.2.220, July 20230.6.3, February 2023SQL Server 2022, November 2022
License infoCommercial or Open SourcecommercialOpen Source infoApache version 2Open Source infodual-licence (Mozilla public license, Eclipse public license)Open Source infoApache 2.0commercial inforestricted free version is available
Cloud-based only infoOnly available as a cloud serviceyesnononono
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.SQLServer Flex @ STACKIT offers a managed version of SQL Server with adjustable CPU, RAM, storage amount and speed, in enterprise grade to perfectly match all application requirements. All services are 100% GDPR-compliant.
Implementation languageJavaJavaJavaC++
Server operating systemshostedBSD
Linux
OS X
Windows
All OS with a Java VMLinux
OS X
Unix
Windows
Linux
Windows
Data schemeyesschema-freeyesyesyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
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.yesnononoyes
Secondary indexesyesrestricted infoonly equality queries, not always the best performing solutionyesyesyes
SQL infoSupport of SQLyesSQL-like SELECT, DML and DDL statements (CQL)yesnoyes
APIs and other access methodsJDBC
ODBC
Proprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
JDBC
ODBC
Java API
TinkerPop Blueprints
TinkerPop Frames
TinkerPop Gremlin
TinkerPop Rexster
ADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
Supported programming languagesJava
Python
C#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
JavaClojure
Java
Python
C#
C++
Delphi
Go
Java
JavaScript (Node.js)
PHP
Python
R
Ruby
Visual Basic
Server-side scripts infoStored proceduresyesnoJava Stored Procedures and User-Defined FunctionsyesTransact SQL, .NET languages, R, Python and (with SQL Server 2019) Java
Triggersyesyesyesyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceSharding infono "single point of failure"noneyes infodepending on the used storage backend (e.g. Cassandra, HBase, BerkeleyDB)tables can be distributed across several files (horizontal partitioning); sharding through federation
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceselectable replication factor infoRepresentation of geographical distribution of servers is possibleWith clustering: 2 database servers on different computers operate on identical copies of a databaseyesyes, but depending on the SQL-Server Edition
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnoyes infovia Faunus, a graph analytics engineno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integrityyesnoyesyes infoRelationships in graphsyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno infoAtomicity and isolation are supported for single operationsACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyesyesyes infoSupports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcastyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyes
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess rights for users can be defined per objectfine grained access rights according to SQL-standardUser authentification and security via Rexster Graph Serverfine grained access rights according to SQL-standard
More information provided by the system vendor
Alibaba Cloud PolarDBCassandraH2JanusGraph infosuccessor of TitanMicrosoft SQL Server
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
» more
Apache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
» more
No single point of failure ensures 100% availability . Operational simplicity for...
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Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
» more
Internet of Things (IOT), fraud detection applications, recommendation engines, product...
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Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
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Market metricsCassandra is used by 40% of the Fortune 100.
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more
Apache license  Pricing for commercial distributions provided by DataStax and available...
» more

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More resources
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