DBMS > Kdb vs. Qdrant vs. SpaceTime
System Properties Comparison Kdb vs. Qdrant vs. SpaceTime
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|Editorial information provided by DB-Engines
|Kdb Xexclude from comparison
|Qdrant Xexclude from comparison
|SpaceTime Xexclude from comparison
|High performance Time Series DBMS
|A high-performance vector database with neural network or semantic-based matching
|SpaceTime is a spatio-temporal DBMS with a focus on performance.
|Primary database model
|Time Series DBMS
|Secondary database models
|Kx Systems, a division of First Derivatives plc
|2000 kdb was released 2000, kdb+ in 2003
|3.6, May 2018
|License Commercial or Open Source
|commercial free 32-bit version
|Open Source Apache Version 2.0
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
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|Server operating systems
|Typing predefined data types such as float or date
|Numbers, Strings, Geo, Boolean
|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 table attribute 'grouped'
|yes Keywords, numberic ranges, geo, full-text
|SQL Support of SQL
|SQL-like query language (q)
|A subset of ANSI SQL is implemented
|APIs and other access methods
RESTful HTTP/JSON API OpenAPI 3.0
|RESTful HTTP API
|Supported programming languages
|Server-side scripts Stored procedures
|user defined functions
|yes with views
|Partitioning methods Methods for storing different data on different nodes
|Replication methods Methods for redundantly storing data on multiple nodes
|Real-time block device replication (DRBD)
|MapReduce Offers an API for user-defined Map/Reduce methods
|no similar paradigm used for internal processing
|Consistency concepts Methods to ensure consistency in a distributed system
|Eventual Consistency, tunable consistency
|Foreign keys Referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|Concurrency Support for concurrent manipulation of data
|Durability Support for making data persistent
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.
|User concepts Access control
|rights management via user accounts
|More information provided by the system vendor
|Integrated columnar database & programming system for streaming, real time and historical...
|provides seamless scalability; runs on industry standard server platforms; is top-ranked...
|Typical application scenarios
|tick database streaming sensor data massive intelligence applications oil and gas...
|Goldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
|kdb+ performance and reliability proven by our customers in critical infrastructure...
|Licensing and pricing models
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|Recent citations in the news
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