DBMS > eXtremeDB vs. Interbase vs. PostgreSQL
System Properties Comparison eXtremeDB vs. Interbase vs. PostgreSQL
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|Editorial information provided by DB-Engines|
|Name||eXtremeDB Xexclude from comparison||Interbase Xexclude from comparison||PostgreSQL Xexclude from comparison|
|Description||Natively in-memory DBMS with options for persistency, high-availability and clustering||Light-weight proven RDBMS originally from Borland||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL|
|Primary database model||Relational DBMS|
Time Series DBMS
|Relational DBMS||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.|
|Secondary database models||Document store|
|Developer||McObject||Embarcadero||PostgreSQL Global Development Group www.postgresql.org/developer|
|Initial release||2001||1984||1989 1989: Postgres, 1996: PostgreSQL|
|Current release||8.2, 2021||InterBase 2020, December 2019||14.4, June 2022|
|License Commercial or Open Source||commercial||commercial||Open Source BSD|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C and C++||C||C|
|Server operating systems||AIX|
|Typing predefined data types such as float or date||yes||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.||no support of XML interfaces available||no export as XML data possible||yes specific XML-type available, but no XML query functionality.|
|SQL Support of SQL||yes with the option: eXtremeSQL||yes||yes standard with numerous extensions|
|APIs and other access methods||.NET Client API|
RESTful HTTP API
native C library
streaming API for large objects
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||yes||yes Interbase procedure and trigger language||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.|
|Triggers||yes by defining events||yes||yes|
|Partitioning methods Methods for storing different data on different nodes||horizontal partitioning / sharding||none||partitioning by range, list and (since PostgreSQL 11) by hash|
|Replication methods Methods for redundantly storing data on multiple nodes||Active Replication Fabric™ for IoT|
Multi-source replication by means of eXtremeDB Cluster option
Source-replica replication by means of eXtremeDB High Availability option
|Interbase Change Views||Source-replica replication other methods possible by using 3rd party extensions|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||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 Optimistic (MVCC) and pessimistic (locking) strategies available||yes Multiversion concurreny control||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes||no|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
|More information provided by the system vendor|
|Specific characteristics||eXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...|
|Competitive advantages||eXtremeDB databases can be modeled relationally or as objects and can utilize SQL...|
|Typical application scenarios||IoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...|
|Key customers||Schneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...|
|Market metrics||With hundreds of customers and over 30 million devices/applications using the product...|
|Licensing and pricing models||For server use cases, there is a simple per-server license irrespective of the number...|
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