DBMS > IBM Db2 Event Store vs. STSdb
System Properties Comparison IBM Db2 Event Store vs. STSdb
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|Editorial information provided by DB-Engines|
|Name||IBM Db2 Event Store Xexclude from comparison||STSdb Xexclude from comparison|
|Description||Distributed Event Store optimized for Internet of Things use cases||Key-Value Store with special method for indexing optimized for high performance using a special indexing method|
|Primary database model||Event Store|
Time Series DBMS
|Developer||IBM||STS Soft SC|
|Current release||2.0||4.0.8, September 2015|
|License Commercial or Open Source||commercial free developer edition available||Open Source GPLv2, commercial license available|
|Cloud-based only Only available as a cloud service||no||no|
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|Implementation language||C and C++||C#|
|Server operating systems||Linux Linux, macOS, Windows for the developer addition||Windows|
|Typing predefined data types such as float or date||yes||yes primitive types and user defined types (classes)|
|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|
|SQL Support of SQL||yes through the embedded Spark runtime||no|
|APIs and other access methods||ADO.NET|
RESTful HTTP API
|.NET Client API|
|Supported programming languages||C|
|Server-side scripts Stored procedures||yes||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Active-active shard replication||none|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no|
|Concurrency Support for concurrent manipulation of data||No - written data is immutable||yes|
|Durability Support for making data persistent||Yes - Synchronous writes to local disk combined with replication and asynchronous writes in parquet format to permanent shared storage||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no|
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|IBM Db2 Event Store||STSdb|
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