DBMS > Blueflood vs. EventStoreDB vs. Microsoft Azure Synapse Analytics vs. SWC-DB

System Properties Comparison Blueflood vs. EventStoreDB vs. Microsoft Azure Synapse Analytics vs. SWC-DB

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Editorial information provided by DB-Engines
Name	Blueflood  Xexclude from comparison	EventStoreDB  Xexclude from comparison	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse  Xexclude from comparison	SWC-DB Super Wide Column Database  Xexclude from comparison
Description	Scalable TimeSeries DBMS based on Cassandra	Industrial-strength, open-source database solution built from the ground up for event sourcing.	Elastic, large scale data warehouse service leveraging the broad eco-system of SQL Server	A high performance, scalable Wide Column DBMS
Primary database model	Time Series DBMS	Event Store	Relational DBMS	Wide column store
Secondary database models				Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.13 Rank #346   Overall #33   Time Series DBMS	Score 1.19 Rank #173   Overall #1   Event Stores	Score 19.93 Rank #31   Overall #19   Relational DBMS	Score 0.08 Rank #364   Overall #13   Wide column stores
Website	blueflood.io	www.eventstore.com	azure.microsoft.com/­services/­synapse-analytics	github.com/­kashirin-alex/­swc-db www.swcdb.org
Technical documentation	github.com/­rax-maas/­blueflood/­wiki	developers.eventstore.com	docs.microsoft.com/­azure/­synapse-analytics
Developer	Rackspace	Event Store Limited	Microsoft	Alex Kashirin
Initial release	2013	2012	2016	2020
Current release		21.2, February 2021		0.5, April 2021
License Commercial or Open Source	Open Source Apache 2.0	Open Source	commercial	Open Source GPL V3
Cloud-based only Only available as a cloud service	no	no	yes	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java		C++	C++
Server operating systems	Linux OS X	Linux Windows	hosted	Linux
Data scheme	predefined scheme		yes	schema-free
Typing predefined data types such as float or date	yes		yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no		no	no
Secondary indexes	no		yes
SQL Support of SQL	no		yes	SQL-like query language
APIs and other access methods	HTTP REST		ADO.NET JDBC ODBC	Proprietary protocol Thrift
Supported programming languages			C# Java PHP	C++
Server-side scripts Stored procedures	no		Transact SQL	no
Triggers	no		no	no
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra		Sharding, horizontal partitioning	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra		yes
MapReduce Offers an API for user-defined Map/Reduce methods	no		no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra		Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no		no docs.microsoft.com/­en-us/­azure/­synapse-analytics/­sql-data-warehouse/­sql-data-warehouse-table-constraints
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no		ACID
Concurrency Support for concurrent manipulation of data	yes		yes	yes
Durability Support for making data persistent	yes		yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no			no
User concepts Access control	no		yes
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More resources
	Blueflood	EventStoreDB	Microsoft Azure Synapse Analytics previously named Azure SQL Data Warehouse	SWC-DB Super Wide Column Database
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