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DBMS > Alibaba Cloud TSDB vs. Databricks vs. EJDB vs. EventStoreDB

System Properties Comparison Alibaba Cloud TSDB vs. Databricks vs. EJDB vs. EventStoreDB

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Editorial information provided by DB-Engines
NameAlibaba Cloud TSDB  Xexclude from comparisonDatabricks  Xexclude from comparisonEJDB  Xexclude from comparisonEventStoreDB  Xexclude from comparison
DescriptionA stable, reliable, and cost-effective online high-performance time series database serviceThe Databricks Lakehouse Platform combines elements of data lakes and data warehouses to provide a unified view onto structured and unstructured data. It is based on Apache Spark.Embeddable document-store database library with JSON representation of queries (in MongoDB style)Industrial-strength, open-source database solution built from the ground up for event sourcing.
Primary database modelTime Series DBMSDocument store
Relational DBMS
Document storeEvent Store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.24
Rank#306  Overall
#26  Time Series DBMS
Score78.61
Rank#15  Overall
#2  Document stores
#10  Relational DBMS
Score0.27
Rank#297  Overall
#44  Document stores
Score1.10
Rank#179  Overall
#1  Event Stores
Websitewww.alibabacloud.com/­product/­hitsdbwww.databricks.comgithub.com/­Softmotions/­ejdbwww.eventstore.com
Technical documentationwww.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdbdocs.databricks.comgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mddevelopers.eventstore.com
DeveloperAlibabaDatabricksSoftmotionsEvent Store Limited
Initial release201320122012
Current release21.2, February 2021
License infoCommercial or Open SourcecommercialcommercialOpen Source infoGPLv2Open Source
Cloud-based only infoOnly available as a cloud serviceyesyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC
Server operating systemshostedhostedserver-lessLinux
Windows
Data schemeschema-freeFlexible Schema (defined schema, partial schema, schema free)schema-free
Typing infopredefined data types such as float or dateNumeric data and Stringsyes infostring, integer, double, bool, date, object_id
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.noyes
Secondary indexesnoyesno
SQL infoSupport of SQLnowith Databricks SQLno
APIs and other access methodsHTTP RESTJDBC
ODBC
RESTful HTTP API
in-process shared library
Supported programming languagesJavaPython
R
Scala
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Server-side scripts infoStored proceduresnouser defined functions and aggregatesno
Triggersnono
Partitioning methods infoMethods for storing different data on different nodesnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono infotypically not needed, however similar functionality with collection joins possible
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoRead/Write Locking
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.nono
User concepts infoAccess controlAccess managed on TSDB instance levelno
More information provided by the system vendor
Alibaba Cloud TSDBDatabricksEJDBEventStoreDB
Specific characteristicsSupported database models : In addition to the Document store and Relational DBMS...
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More resources
Alibaba Cloud TSDBDatabricksEJDBEventStoreDB
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