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DBMS > Amazon CloudSearch vs. Druid vs. EXASOL

System Properties Comparison Amazon CloudSearch vs. Druid vs. EXASOL

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Editorial information provided by DB-Engines
NameAmazon CloudSearch  Xexclude from comparisonDruid  Xexclude from comparisonEXASOL  Xexclude from comparison
DescriptionA hosted search engine service by Amazon with the data stored in Amazons cloudOpen-source analytics data store designed for OLAP queries on timeseries dataHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.
Primary database modelSearch engineRelational DBMS
Time Series DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.06
Rank#86  Overall
#9  Search engines
Score1.87
Rank#116  Overall
#56  Relational DBMS
#8  Time Series DBMS
Score3.04
Rank#87  Overall
#44  Relational DBMS
Websiteaws.amazon.com/­cloudsearchdruid.apache.orgwww.exasol.com/­en/­products
Technical documentationdocs.aws.amazon.com/­cloudsearchdruid.apache.org/­docs/­latest/­designwww.exasol.com/­en/­community/­resources
DeveloperAmazonMetamarkets Group and contributorsExasol
Initial release201220122000
License infoCommercial or Open SourcecommercialOpen Source infoApache license v2commercial
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava
Server operating systemshostedLinux
OS X
Unix
Data schemeyesyes infoschema-less columns are supportedyes
Typing infopredefined data types such as float or dateyesyesyes
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.nono
Secondary indexesyes infoall search fields are automatically indexedyesyes
SQL infoSupport of SQLnoSQL support via Apache Calcite adapteryes
APIs and other access methodsHTTP APIJSON over HTTP.Net
JDBC
ODBC
WebSocket
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
Java
Lua
Python
R
Server-side scripts infoStored proceduresnonouser defined functions
Triggersnonoyes
Partitioning methods infoMethods for storing different data on different nodesyes infoautomatic partitioning across Amazon Search Instance as requiredShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infomanaged transparently by AWSyes, via HDFS, S3 or other storage engines
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infoHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlauthentication via encrypted signaturesno infoavailable via extensionsAccess rights for users, groups and roles according to SQL-standard

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More resources
Amazon CloudSearchDruidEXASOL
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