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DBMS > CockroachDB vs. Microsoft Azure Table Storage vs. Realm vs. SAP IQ

System Properties Comparison CockroachDB vs. Microsoft Azure Table Storage vs. Realm vs. SAP IQ

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonMicrosoft Azure Table Storage  Xexclude from comparisonRealm  Xexclude from comparisonSAP IQ infoformer name: Sybase IQ  Xexclude from comparison
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.A Wide Column Store for rapid development using massive semi-structured datasetsA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataColumnar RDBMS optimized for Big Data analytics
Primary database modelRelational DBMSWide column storeDocument storeRelational DBMS infocolumn-oriented
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score4.74
Rank#67  Overall
#36  Relational DBMS
Score3.55
Rank#80  Overall
#6  Wide column stores
Score7.18
Rank#52  Overall
#8  Document stores
Score2.56
Rank#106  Overall
#52  Relational DBMS
Websitewww.cockroachlabs.comazure.microsoft.com/­en-us/­services/­storage/­tablesrealm.iowww.sap.com/­products/­technology-platform/­sybase-iq-big-data-management.html
Technical documentationwww.cockroachlabs.com/­docsrealm.io/­docshelp.sap.com/­docs/­SAP_IQ
DeveloperCockroach LabsMicrosoftRealm, acquired by MongoDB in May 2019SAP, formerly Sybase
Initial release2015201220141994
Current release24.1.0, May 202416.1 SPS04, April 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availablecommercialOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGo
Server operating systemsLinux
macOS
Windows
hostedAndroid
Backend: server-less
iOS
Windows
AIX
HP-UX
Linux
Solaris
Windows
Data schemedynamic schemaschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nononono
Secondary indexesyesnoyesyes
SQL infoSupport of SQLyes, wire compatible with PostgreSQLnonoyes
APIs and other access methodsJDBCRESTful HTTP APIADO.NET
JDBC
ODBC
RESTful HTTP API
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
.Net
C#
C++
Java
JavaScript (Node.js)
PHP
Python
Ruby
.Net
Java infowith Android only
Objective-C
React Native
Swift
C
C#
C++
Java
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnonono inforuns within the applications so server-side scripts are unnecessaryyes
Triggersnonoyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTSharding infoImplicit feature of the cloud servicenoneshared disk or shared nothing architectures with SAP IQ Multiplexer
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTyes infoimplicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.noneSAP/Sybase Replication Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDoptimistic lockingACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoIn-Memory realmno
User concepts infoAccess controlRole-based access controlAccess rights based on private key authentication or shared access signaturesyesfine grained access rights according to SQL-standard

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More resources
CockroachDBMicrosoft Azure Table StorageRealmSAP IQ infoformer name: Sybase IQ
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