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DBMS > Datomic vs. Druid vs. RocksDB vs. SAP SQL Anywhere vs. Splunk

System Properties Comparison Datomic vs. Druid vs. RocksDB vs. SAP SQL Anywhere vs. Splunk

Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonDruid  Xexclude from comparisonRocksDB  Xexclude from comparisonSAP SQL Anywhere infoformerly called Adaptive Server Anywhere  Xexclude from comparisonSplunk  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityOpen-source analytics data store designed for OLAP queries on timeseries dataEmbeddable persistent key-value store optimized for fast storage (flash and RAM)RDBMS database and synchronization technologies for server, desktop, remote office, and mobile environmentsAnalytics Platform for Big Data
Primary database modelRelational DBMSRelational DBMS
Time Series DBMS
Key-value storeRelational DBMSSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.98
Rank#111  Overall
#53  Relational DBMS
Score1.92
Rank#113  Overall
#55  Relational DBMS
#7  Time Series DBMS
Score2.74
Rank#90  Overall
#16  Key-value stores
Score5.23
Rank#60  Overall
#33  Relational DBMS
Score88.08
Rank#13  Overall
#2  Search engines
Websitewww.datomic.comdruid.apache.orgrocksdb.orgwww.sap.com/­products/­sql-anywhere.htmlwww.splunk.com
Technical documentationdocs.datomic.comdruid.apache.org/­docs/­latest/­designgithub.com/­facebook/­rocksdb/­wikihelp.sap.com/­sql-anywheredocs.splunk.com/­Documentation/­Splunk
DeveloperCognitectMetamarkets Group and contributorsFacebook, Inc.SAP infoformerly SybaseSplunk Inc.
Initial release20122012201319922003
Current release0.9.5951, July 20196.7.3, March 202017, July 2015
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoApache license v2Open Source infoBSDcommercialcommercial infoLimited free edition and free developer edition available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava, ClojureJavaC++
Server operating systemsAll OS with a Java VMLinux
OS X
Unix
AIX
HP-UX
Linux
OS X
Solaris
Windows
Linux
OS X
Solaris
Windows
Data schemeyesyes infoschema-less columns are supportedschema-freeyesyes
Typing infopredefined data types such as float or dateyesyesnoyesyes
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.nononoyesyes
Secondary indexesyesyesnoyesyes
SQL infoSupport of SQLnoSQL support via Apache Calcite adapternoyesno infoSplunk Search Processing Language for search commands
APIs and other access methodsRESTful HTTP APIJSON over HTTPC++ API
Java API
ADO.NET
HTTP API
JDBC
ODBC
HTTP REST
Supported programming languagesClojure
Java
Clojure
JavaScript
PHP
Python
R
Ruby
Scala
C++
Java
C
C#
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Ruby
C#
Java
JavaScript
PHP
Python
Ruby
Server-side scripts infoStored proceduresyes infoTransaction Functionsnonoyes, in C/C++, Java, .Net or Perlyes
TriggersBy using transaction functionsnonoyesyes
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersShardingnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersyes, via HDFS, S3 or other storage enginesnoneMaster-slave replication infoDatabase mirroringMaster-master replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoyesACIDno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes inforecommended only for testing and developmentnoyesyesno
User concepts infoAccess controlnono infoavailable via extensionsnofine grained access rights according to SQL-standardAccess rights for users and roles

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More resources
DatomicDruidRocksDBSAP SQL Anywhere infoformerly called Adaptive Server AnywhereSplunk
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