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DBMS > IBM Db2 vs. RocksDB vs. Splunk vs. XAP

System Properties Comparison IBM Db2 vs. RocksDB vs. Splunk vs. XAP

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Editorial information provided by DB-Engines
NameIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonRocksDB  Xexclude from comparisonSplunk  Xexclude from comparisonXAP  Xexclude from comparison
DescriptionCommon in IBM host environments, 2 different versions for host and Windows/LinuxEmbeddable persistent key-value store optimized for fast storage (flash and RAM)Analytics Platform for Big DataHigh performant in-memory data grid for mission critical applications. Insight Edge from the same company extends XAP for AI/ML support, BI and other interfaces
Primary database modelRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBKey-value storeSearch engineDocument store
Key-value store infoValues are user defined objects
Secondary database modelsDocument store
RDF store infoin DB2 LUW (Linux, Unix, Windows)
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score161.24
Rank#6  Overall
#5  Relational DBMS
Score3.65
Rank#86  Overall
#14  Key-value stores
Score87.90
Rank#13  Overall
#2  Search engines
Score1.00
Rank#168  Overall
#26  Document stores
#31  Key-value stores
Websitewww.ibm.com/­analytics/­db2rocksdb.orgwww.splunk.comwww.gigaspaces.com/­products/­xap
Technical documentationwww.ibm.com/­support/­knowledgecenter/­SSEPGGgithub.com/­facebook/­rocksdb/­wikidocs.splunk.com/­Documentation/­Splunkdocs.gigaspaces.com/­latest/­landing.html
DeveloperIBMFacebook, Inc.Splunk Inc.Gigaspaces Technologies
Initial release1983 infohost version201320032000
Current release12.1, October 20166.11.4, July 202014.5.0, June 2019
License infoCommercial or Open Sourcecommercial infofree version is availableOpen Source infoBSDcommercial infoLimited free edition and free developer edition availableOpen Source infoApache Version 2; Commercial licenses available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC and C++C++Java, C++, .Net
Server operating systemsAIX
HP-UX
Linux
Solaris
Windows
z/OS
Linux
OS X
Solaris
Windows
Linux
macOS
Solaris
Windows
Data schemeyesschema-freeyesschema-free
Typing infopredefined data types such as float or dateyesnoyesyes
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.noyesno infoXML can be used for describing objects metadata
Secondary indexesyesnoyesyes
SQL infoSupport of SQLyesnono infoSplunk Search Processing Language for search commandsSQL-like query language and DML statements
APIs and other access methodsADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
C++ API
Java API
HTTP RESTGigaSpaces LRMI
Hibernate
JCache
JDBC
JPA
ODBC
RESTful HTTP API
Spring Data
Supported programming languagesC
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
C++
Java
C#
Java
JavaScript
PHP
Python
Ruby
.Net
C++
Java
Server-side scripts infoStored proceduresyesnoyesyes
Triggersyesnoyesyes infoEvent Listeners
Partitioning methods infoMethods for storing different data on different nodesSharding infoonly with Windows/Unix/Linux VersionnoneShardingSharding infoHash based
Replication methods infoMethods for redundantly storing data on multiple nodesyes infowith separate tools (MQ, InfoSphere)noneMulti-source replicationMulti-source replication infosynchronous or asynchronous
Source-replica replication infosynchronous or asynchronous
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesyes infoMap-Reduce pattern can be built with XAP task executors
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate Consistency infoConsistency level configurable: ALL, QUORUM, ANY
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDyesno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searchingACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
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.yesnoyes
User concepts infoAccess controlfine grained access rights according to SQL-standardnoAccess rights for users and rolesRole-based access control

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More resources
IBM Db2 infoformerly named DB2 or IBM Database 2RocksDBSplunkXAP
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