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DBMS > Amazon SimpleDB vs. Memcached vs. NuoDB vs. SQream DB

System Properties Comparison Amazon SimpleDB vs. Memcached vs. NuoDB vs. SQream DB

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Editorial information provided by DB-Engines
NameAmazon SimpleDB  Xexclude from comparisonMemcached  Xexclude from comparisonNuoDB  Xexclude from comparisonSQream DB  Xexclude from comparison
DescriptionHosted simple database service by Amazon, with the data stored in the Amazon Cloud. infoThere is an unrelated product called SimpleDB developed by Edward ScioreIn-memory key-value store, originally intended for cachingNuoDB is a webscale distributed database that supports SQL and ACID transactionsa GPU-based, columnar RDBMS for big data analytics workloads
Primary database modelKey-value storeKey-value storeRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.85
Rank#138  Overall
#24  Key-value stores
Score19.42
Rank#32  Overall
#4  Key-value stores
Score0.89
Rank#198  Overall
#92  Relational DBMS
Score0.70
Rank#227  Overall
#104  Relational DBMS
Websiteaws.amazon.com/­simpledbwww.memcached.orgwww.3ds.com/­nuodb-distributed-sql-databasesqream.com
Technical documentationdocs.aws.amazon.com/­simpledbgithub.com/­memcached/­memcached/­wikidoc.nuodb.comdocs.sqream.com
DeveloperAmazonDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalDassault Systèmes infooriginally NuoDB, Inc.SQream Technologies
Initial release2007200320132017
Current release1.6.25, March 20242022.1.6, December 2022
License infoCommercial or Open SourcecommercialOpen Source infoBSD licensecommercial infolimited edition freecommercial
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC++C++, CUDA, Haskell, Java, Scala
Server operating systemshostedFreeBSD
Linux
OS X
Unix
Windows
hosted infoAmazon EC2, Windows Azure, SoftLayer
Linux
OS X
Windows
Linux
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or datenonoyesyes, ANSI Standard SQL Types
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.no
Secondary indexesyes infoAll columns are indexed automaticallynoyesno
SQL infoSupport of SQLnonoyesyes
APIs and other access methodsRESTful HTTP APIProprietary protocolADO.NET
JDBC
ODBC
.Net
JDBC
ODBC
Supported programming languages.Net
C
C++
Erlang
Java
PHP
Python
Ruby
Scala
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
C
C++
Go
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
C++
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnonoJava, SQLuser defined functions in Python
Triggersnonoyesno
Partitioning methods infoMethods for storing different data on different nodesnone infoSharding must be implemented in the applicationnonedata is dynamically stored/cached on the nodes where it is read/writtenhorizontal and vertical partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone infoRepcached, a Memcached patch, provides this functionallityyes infoManaged transparently by NuoDBnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency infocan be specified for read operations
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoConcurrent data updates can be detected by the applicationnoACID infotunable commit protocolACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoMVCCyes
Durability infoSupport for making data persistentyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infoTemporary table
User concepts infoAccess controlAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)yes infousing SASL (Simple Authentication and Security Layer) protocolStandard SQL roles/ privileges, Administrative Users

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More resources
Amazon SimpleDBMemcachedNuoDBSQream DB
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Amazon SimpleDB Management in Eclipse | AWS News Blog
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