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DBMS > CockroachDB vs. IBM Db2 Event Store vs. SWC-DB

System Properties Comparison CockroachDB vs. IBM Db2 Event Store vs. SWC-DB

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Editorial information provided by DB-Engines
NameCockroachDB  Xexclude from comparisonIBM Db2 Event Store  Xexclude from comparisonSWC-DB infoSuper Wide Column Database  Xexclude from comparison
DescriptionCockroachDB is a distributed database architected for modern cloud applications. It is wire compatible with PostgreSQL and backed by a Key-Value Store, which is either RocksDB or a purpose-built derivative, called Pebble.Distributed Event Store optimized for Internet of Things use casesA high performance, scalable Wide Column DBMS
Primary database modelRelational DBMSEvent Store
Time Series DBMS
Wide column store
Secondary database modelsTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.90
Rank#68  Overall
#36  Relational DBMS
Score0.20
Rank#312  Overall
#2  Event Stores
#26  Time Series DBMS
Score0.01
Rank#377  Overall
#13  Wide column stores
Websitewww.cockroachlabs.comwww.ibm.com/­products/­db2-event-storegithub.com/­kashirin-alex/­swc-db
www.swcdb.org
Technical documentationwww.cockroachlabs.com/­docswww.ibm.com/­docs/­en/­db2-event-store
DeveloperCockroach LabsIBMAlex Kashirin
Initial release201520172020
Current release24.1.0, May 20242.00.5, April 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0, commercial license availablecommercial infofree developer edition availableOpen Source infoGPL V3
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoC and C++C++
Server operating systemsLinux
macOS
Windows
Linux infoLinux, macOS, Windows for the developer additionLinux
Data schemedynamic schemayesschema-free
Typing infopredefined data types such as float or dateyesyes
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.nonono
Secondary indexesyesno
SQL infoSupport of SQLyes, wire compatible with PostgreSQLyes infothrough the embedded Spark runtimeSQL-like query language
APIs and other access methodsJDBCADO.NET
DB2 Connect
JDBC
ODBC
RESTful HTTP API
Proprietary protocol
Thrift
Supported programming languagesC#
C++
Clojure
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Rust
C
C#
C++
Cobol
Delphi
Fortran
Go
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Scala
Visual Basic
C++
Server-side scripts infoStored proceduresnoyesno
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by key range) infoall tables are translated to an ordered KV store and then broken down into 64MB ranges, which are then used as replicas in RAFTShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication using RAFTActive-active shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno
Concurrency infoSupport for concurrent manipulation of datayesNo - written data is immutableyes
Durability infoSupport for making data persistentyesYes - Synchronous writes to local disk combined with replication and asynchronous writes in parquet format to permanent shared storageyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlRole-based access controlfine grained access rights according to SQL-standard

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More resources
CockroachDBIBM Db2 Event StoreSWC-DB infoSuper Wide Column Database
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