DBMS > Atos Standard Common Repository vs. DolphinDB vs. IBM Db2 Event Store
System Properties Comparison Atos Standard Common Repository vs. DolphinDB vs. IBM Db2 Event Store
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|Editorial information provided by DB-Engines|
|Name||Atos Standard Common Repository Xexclude from comparison||DolphinDB Xexclude from comparison||IBM Db2 Event Store Xexclude from comparison|
|This system has been discontinued and will be removed from the DB-Engines ranking.|
|Description||Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks||DolphinDB is a high performance Time Series DBMS. It is integrated with an easy-to-use fully featured programming language and a high-volume high-velocity streaming analytics system. It offers operational simplicity, scalability, fault tolerance, and concurrency.||Distributed Event Store optimized for Internet of Things use cases|
|Primary database model||Document store|
|Time Series DBMS||Event Store|
Time Series DBMS
|Secondary database models||Relational DBMS|
|Developer||Atos Convergence Creators||DolphinDB, Inc||IBM|
|Current release||1703||v2.00.4, January 2022||2.0|
|License Commercial or Open Source||commercial||commercial free community version available||commercial free developer edition available|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Implementation language||Java||C++||C and C++|
|Server operating systems||Linux||Linux|
|Linux Linux, macOS, Windows for the developer addition|
|Data scheme||Schema and schema-less with LDAP views||yes||yes|
|Typing predefined data types such as float or date||optional||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.||yes||no||no|
|SQL Support of SQL||no||SQL-like query language||yes through the embedded Spark runtime|
|APIs and other access methods||LDAP||JDBC|
JSON over HTTP
MQTT (Message Queue Telemetry Transport)
RESTful HTTP API
|Supported programming languages||All languages with LDAP bindings||C#|
|Server-side scripts Stored procedures||no||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding cell division||horizontal partitioning||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||yes||Active-active shard replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency or Eventual Consistency depending on configuration||Immediate Consistency||Eventual Consistency|
|Foreign keys Referential integrity||no||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||Atomic execution of specific operations||yes||no|
|Concurrency Support for concurrent manipulation of data||yes||yes||No - written data is immutable|
|Durability Support for making data persistent||yes||yes||Yes - Synchronous writes to local disk combined with replication and asynchronous writes in parquet format to permanent shared storage|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes||yes|
|User concepts Access control||LDAP bind authentication||Administrators, Users, Groups||fine grained access rights according to SQL-standard|
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|Atos Standard Common Repository||DolphinDB||IBM Db2 Event Store|
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