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DBMS > KairosDB vs. Microsoft Azure Synapse Analytics vs. Oracle Coherence vs. VelocityDB

System Properties Comparison KairosDB vs. Microsoft Azure Synapse Analytics vs. Oracle Coherence vs. VelocityDB

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Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonMicrosoft Azure Synapse Analytics infopreviously named Azure SQL Data Warehouse  Xexclude from comparisonOracle Coherence  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2Elastic, large scale data warehouse service leveraging the broad eco-system of SQL ServerOracles in-memory data grid solutionA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSRelational DBMSKey-value storeGraph DBMS
Object oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score19.93
Rank#31  Overall
#19  Relational DBMS
Score1.97
Rank#129  Overall
#22  Key-value stores
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­kairosdb/­kairosdbazure.microsoft.com/­services/­synapse-analyticswww.oracle.com/­java/­coherencevelocitydb.com
Technical documentationkairosdb.github.iodocs.microsoft.com/­azure/­synapse-analyticsdocs.oracle.com/­en/­middleware/­standalone/­coherencevelocitydb.com/­UserGuide
DeveloperMicrosoftOracleVelocityDB Inc
Initial release2013201620072011
Current release1.2.2, November 201814.1, August 20237.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialcommercialcommercial
Cloud-based only infoOnly available as a cloud servicenoyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++JavaC#
Server operating systemsLinux
OS X
Windows
hostedAll OS with a Java VMAny that supports .NET
Data schemeschema-freeyesschema-freeyes
Typing infopredefined data types such as float or dateyesyesyesyes
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.nononono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoyesnono
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
ADO.NET
JDBC
ODBC
JCache
JPA
RESTful HTTP API
.Net
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
C#
Java
PHP
.Net
C++
Java
.Net
Server-side scripts infoStored proceduresnoTransact SQLnono
Triggersnonoyes infoLive EventsCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraSharding, horizontal partitioningShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandrayesyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynono infodocs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraintsnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDconfigurableACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionallyyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlsimple password-based access controlyesauthentification to access the cache via certificates or http basic authenticationBased on Windows Authentication

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More resources
KairosDBMicrosoft Azure Synapse Analytics infopreviously named Azure SQL Data WarehouseOracle CoherenceVelocityDB
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