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DBMS > Memcached vs. Microsoft SQL Server vs. Oracle vs. Realm vs. SAP HANA

System Properties Comparison Memcached vs. Microsoft SQL Server vs. Oracle vs. Realm vs. SAP HANA

Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonMicrosoft SQL Server  Xexclude from comparisonOracle  Xexclude from comparisonRealm  Xexclude from comparisonSAP HANA  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingMicrosofts flagship relational DBMSWidely used RDBMSA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataIn-memory, column based data store. Available as appliance or cloud service
Primary database modelKey-value storeRelational DBMSRelational DBMSDocument storeRelational DBMS
Secondary database modelsDocument store
Graph DBMS
Spatial DBMS
Document store
Graph DBMS infowith Oracle Spatial and Graph
RDF store infowith Oracle Spatial and Graph
Spatial DBMS infowith Oracle Spatial and Graph
Document store
Graph DBMS infowith SAP Hana, Enterprise Edition
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score25.66
Rank#30  Overall
#4  Key-value stores
Score970.85
Rank#3  Overall
#3  Relational DBMS
Score1271.55
Rank#1  Overall
#1  Relational DBMS
Score9.51
Rank#50  Overall
#8  Document stores
Score56.24
Rank#19  Overall
#12  Relational DBMS
Websitewww.memcached.orgwww.microsoft.com/­en-us/­sql-serverwww.oracle.com/­databaserealm.iowww.sap.com/­products/­hana.html
Technical documentationgithub.com/­memcached/­memcached/­wikidocs.microsoft.com/­en-US/­sql/­sql-serverdocs.oracle.com/­en/­databaserealm.io/­docshelp.sap.com/­hana
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalMicrosoftOracleRealm, acquired by MongoDB in May 2019SAP
Initial release20031989198020142010
Current release1.6.9, November 2020SQL Server 2019, November 201919c, February 20192.0 SPS05 (June 26, 2020), June 2020
License infoCommercial or Open SourceOpen Source infoBSD licensecommercial inforestricted free version is availablecommercial inforestricted free version is availableOpen Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenonononono infoalso available as a cloud based service
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCC++C and C++
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
Linux
Windows
AIX
HP-UX
Linux
OS X
Solaris
Windows
z/OS
Android
Backend: server-less
iOS
Windows
Appliance or cloud-service
Data schemeschema-freeyesyes infoSchemaless in JSON and XML columnsyesyes
Typing infopredefined data types such as float or datenoyesyesyesyes
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.yesyesnono
Secondary indexesnoyesyesyesyes
SQL infoSupport of SQLnoyesyes infowith proprietary extensionsnoyes
APIs and other access methodsProprietary protocolADO.NET
JDBC
ODBC
OLE DB
Tabular Data Stream (TDS)
JDBC
ODBC
ODP.NET
Oracle Call Interface (OCI)
JDBC
ODBC
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
C#
C++
Delphi
Go
Java
JavaScript (Node.js)
PHP
Python
R
Ruby
Visual Basic
C
C#
C++
Clojure
Cobol
Delphi
Eiffel
Erlang
Fortran
Groovy
Haskell
Java
JavaScript
Lisp
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Scala
Tcl
Visual Basic
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresnoTransact SQL, .NET languages, R, Python and (with SQL Server 2019) JavaPL/SQL infoalso stored procedures in Java possibleno inforuns within the applications so server-side scripts are unnecessarySQLScript, R
Triggersnoyesyesyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesnonetables can be distributed across several files (horizontal partitioning); sharding through federationSharding, horizontal partitioningnoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyes, but depending on the SQL-Server EditionMulti-source replication
Source-replica replication
noneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infocan be realized in PL/SQLnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID infoisolation level can be parameterizedACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentnoyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoVersion 12c introduced the new option 'Oracle Database In-Memory'yes infoIn-Memory realmyes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolfine grained access rights according to SQL-standardfine grained access rights according to SQL-standardyesyes
More information provided by the system vendor
MemcachedMicrosoft SQL ServerOracleRealmSAP HANA
Specific characteristicsNow a part of MongoDB Data Platform , Realm Database is the fast, easy to use, and...
» more
Competitive advantagesRealm ensures offline-first functionality, meaning apps run smoothly and deliver...
» more
Typical application scenariosMobile Consumer Apps First-Line Worker Apps
» more
Key customersCathay Pacific Royal Carribbean Cruise Lines Open Source Database powers apps built...
» more
Market metricsUsed by 100,000+ developers 2 bn installs Currently used in 40k+ applications in...
» more
Licensing and pricing modelsRealm database is licensed under the Apache License v2.0.
» 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
MemcachedMicrosoft SQL ServerOracleRealmSAP HANA
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