DBMS > PostgreSQL vs. Quasardb vs. TimesTen
System Properties Comparison PostgreSQL vs. Quasardb vs. TimesTen
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||Quasardb Xexclude from comparison||TimesTen Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Distributed, high-performance timeseries database||In-Memory RDBMS compatible to Oracle|
|Primary database model||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Time Series DBMS||Relational DBMS|
|Secondary database models||Document store|
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||quasardb||Oracle, TimesTen Performance Software, HP originally founded in HP Labs it was acquired by Oracle in 2005|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2009||1998|
|Current release||12.0, October 2019||3.1, January 2019||11 Release 2 (22.214.171.124.0)|
|License Commercial or Open Source||Open Source BSD||commercial Free community edition, Non-profit organizations and non-commercial usage are eligible for free licenses||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||yes||yes integer and binary||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 specific XML-type available, but no XML query functionality.||no||no|
|Secondary indexes||yes||yes with tags||yes|
|SQL Support of SQL||yes standard with numerous extensions||SQL-like query language||yes|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
Oracle Call Interface (OCI)
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no||PL/SQL|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding consistent hashing||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Master-slave replication other methods possible by using 3rd party extensions||Master-slave replication with selectable replication factor||Master-master replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||with Hadoop integration||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency or Eventual Consistency depending on configuration|
|Foreign keys Referential integrity||yes||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes by using LevelDB||yes by means of logfiles and checkpoints|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes Transient mode||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||Cryptographically strong user authentication and audit trail||fine grained access rights according to SQL-standard|
|More information provided by the system vendor|
|Specific characteristics||High-performance , high-speed, fully integrated timeseries database Seamlessly combines...|
|The world's first commercial In-Memory Relational Database offering (launched in...|
|Competitive advantages||High performance in a cost-effective small package Real-time results for even large...|
|TimesTen offers many advantages over competing products: Mature product with nearly...|
|Typical application scenarios||Tick database Predictive maintenance Pre-deal checks Large scale monitoring|
|TimesTen can be used in a wide range of application areas. Some examples include:...|
|Key customers||Large EU investment banks US based hedge funds Orolia Tellmeplus|
|Some of our key customers include Ericsson , Telcordia , China Mobile, China Telecom,...|
|Market metrics||Has been running in very demanding production environments since 2013 Rapid adoption...|
|TimesTen is used by thousands of customers in tens of thousands of deployments worldwide...|
|Licensing and pricing models||Community edition limited to 2 nodes and 16 GiB of storage per node available for...|
|Standard Oracle licence models ; end user and ISV/OEM licence terms available.|
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services|
|3rd parties||Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.|
2ndQuadrant: PostgreSQL Solutions for the Enterprise.
Dremio is like magic for PostgreSQL accelerating your analytical queries up to 1,000x.
DBHawk: a web-based PostgreSQL/Greenplum database tool. Boost database development and BI productivity with an online Universal database tool.
Azure Database for PostgreSQL provides fully managed, enterprise-ready community PostgreSQL database as a service
SQLPro for PostgreSQL: A simple but powerful PostgreSQL database client available on iPhone and iPad as well as macOS.
pgDash: In-Depth PostgreSQL Monitoring.
General SQL Parser: Instantly adding parsing, decoding, analysis and rewrite SQL processing capability to your products.
CYBERTEC: your professional partner for PostgreSQL services and Data Science based on PostgreSQL since 2000. With offices in Austria, Uruguay, Estonia and Switzerland, CYBERTEC operates worldwide!
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
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