![]() We invite representatives of system vendors to contact us for updating and extending the system information,Īnd for displaying vendor-provided information such as key customers, competitive advantages and market metrics. no yes User concepts Access control fine grained access rights according to SQL-standard no More information provided by the system vendor no Triggers yes yes Partitioning methods Methods for storing different data on different nodes partitioning by range, list and (since PostgreSQL 11) by hash none Replication methods Methods for redundantly storing data on multiple nodes Source-replica replication other methods possible by using 3rd party extensions none MapReduce Offers an API for user-defined Map/Reduce methods no no Consistency concepts Methods to ensure consistency in a distributed system Immediate Consistency Foreign keys Referential integrity yes yes Transaction concepts Support to ensure data integrity after non-atomic manipulations of data ACID ACID Concurrency Support for concurrent manipulation of data yes yes via file-system locks Durability Support for making data persistent yes yes In-memory capabilities Is there an option to define some or all structures to be held in-memory only. Tcl Server-side scripts Stored procedures user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc. ![]() ODBC inofficial driver Supported programming languages. ![]() Streaming API for large objects ADO.NET inofficial driver no Secondary indexes yes yes SQL Support of SQL yes standard with numerous extensions yes SQL-92 is not fully supported APIs and other access methods ADO.NET yes specific XML-type available, but no XML query functionality. support for XML data structures, and/or support for XPath, XQuery or XSLT. XML support Some form of processing data in XML format, e.g. Windows server-less Data scheme yes yes dynamic column types Typing predefined data types such as float or date yes yes not rigid because of 'dynamic typing' concept. Implementation language C C Server operating systems FreeBSD Aiven for PostgreSQL: Fully managed and hosted PostgreSQL® with 70+ extensions and orchestration tooling included. Providers of DBaaS offerings, please contact us to be listed. Spatial DBMS DB-Engines Ranking measures the popularity of database management systems Trend Chart Score 620.38 Rank #4 Overall #4 Relational DBMS Score 129.92 Rank #10 Overall #7 Relational DBMS Website Technical documentation Developer PostgreSQL Global Development Group Dwayne Richard Hipp Initial release 1989 1989: Postgres, 1996: PostgreSQL 2000 Current release 15.3, May 2023 3.42.0 (), May 2023 License Commercial or Open Source Open Source BSD Open Source Public Domain Cloud-based only Only available as a cloud service no no DBaaS offerings (sponsored links) Database as a Service Relational DBMS Secondary database models Document store Handling of key/value pairs with hstore module. Editorial information provided by DB-Engines Name PostgreSQL X exclude from comparison SQLite X exclude from comparison Description Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL Widely used embeddable, in-process RDBMS Primary database model Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Our visitors often compare PostgreSQL and SQLite with MySQL, Microsoft SQL Server and MongoDB. Please select another system to include it in the comparison. SQLite System Properties Comparison PostgreSQL vs. Optional second argument for passing options:* cancel: if true, cancel query if timeout is reached.DBMS > PostgreSQL vs. Useful for complex queries that you want to make sure are not taking too long to execute. The error contains information about the query, bindings, and the timeout that was set. Sets a timeout for the query and will throw a TimeoutError if the timeout is exceeded. ![]() If you don't want to manually specify the result type, it is recommended to always use the type of last value of the chain and assign result of any future chain continuation to a separate variable (which will have a different type). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |