DBMS > Kdb vs. QuestDB
System Properties Comparison Kdb vs. QuestDB
Please select another system to include it in the comparison.
|Editorial information provided by DB-Engines
|Kdb Xexclude from comparison
|QuestDB Xexclude from comparison
|High performance Time Series DBMS
|A high performance open source SQL database for time series data
|Primary database model
|Time Series DBMS
|Time Series DBMS
|Secondary database models
|Kx Systems, a division of First Derivatives plc
|QuestDB Technology Inc
|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 2.0
|Cloud-based only Only available as a cloud service
|DBaaS offerings (sponsored links) Database as a Service
Providers of DBaaS offerings, please contact us to be listed.
|Java (Zero-GC), C++, Rust
|Server operating systems
|yes schema-free via InfluxDB Line Protocol
|Typing predefined data types such as float or date
|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'
|SQL Support of SQL
|SQL-like query language (q)
|SQL with time-series extensions
|APIs and other access methods
InfluxDB Line Protocol (TCP/UDP)
PostgreSQL wire protocol
|Supported programming languages
|C PostgreSQL driver
Rust over HTTP
|Server-side scripts Stored procedures
|user defined functions
|yes with views
|Partitioning methods Methods for storing different data on different nodes
|horizontal partitioning (by timestamps)
|Replication methods Methods for redundantly storing data on multiple nodes
|Source-replica replication with eventual consistency
|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
|Foreign keys Referential integrity
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data
|ACID for single-table writes
|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.
|yes through memory mapped files
|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...
|Relational model with native time series support Column-based storage and time partitioned...
|provides seamless scalability; runs on industry standard server platforms; is top-ranked...
|High ingestion throughput: peak of 4M rows/sec (TSBS Benchmark) Code optimizations...
|Typical application scenarios
|tick database streaming sensor data massive intelligence applications oil and gas...
|Financial tick data Industrial IoT Application Metrics Monitoring
|Goldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
|Banks & Hedge funds, Yahoo, OKX, Airbus, Aquis Exchange, Net App, Cloudera, Airtel,...
|kdb+ performance and reliability proven by our customers in critical infrastructure...
|Licensing and pricing models
|Open source Apache 2.0 QuestDB Enterprise QuestDB Cloud
The Billion Row Challenge (1BRC) - Step-by-step from 71s to 1.7s
Replace InfluxDB with QuestDB
How crypto exchanges like Coinbase make money
Tracking sea faring ships with AIS data and Grafana
US Bitcoin ETFs: Understanding fair value
Related products and services
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|Recent citations in the news
KX ANNOUNCES KDB INSIGHTS AS FULLY MANAGED SERVICE ON AMAZON FINSPACE
McLaren Applied and KX partner to enhance ATLAS software analytics capabilities
KX Brings the Power and Performance of Kdb+ to Python Developers With PyKX
The coding language you can learn in months for top finance jobs
provided by Google News
A Performant Way to Query Streaming Data | by Harrison Hoffman
QuestDB snares $12M Series A with hosted version coming soon
QuestDB gets $12M Series A funding amid growing interest in time-series databases
QuestDB launches 'database-as-a-service' with $12M investment
Read the Pitch Deck Database Startup QuestDB Used to Raise $12 Million
provided by Google News
Share this page