![]() NET languages, R, Python and (with SQL Server 2019) Java user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc. Tcl Server-side scripts Stored procedures Transact SQL. ODBC inofficial driver Supported programming languages C# Streaming API for large objects ADO.NET inofficial driver no Secondary indexes yes yes yes SQL Support of SQL yes yes standard with numerous extensions yes SQL-92 is not fully supported APIs and other access methods ADO.NET yes 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 yes dynamic column types Typing predefined data types such as float or date yes yes yes not rigid because of 'dynamic typing' concept. Implementation language C++ C C Server operating systems Linux 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 920.81 Rank #3 Overall #3 Relational DBMS Score 620.38 Rank #4 Overall #4 Relational DBMS Score 129.92 Rank #10 Overall #7 Relational DBMS Website Technical documentation /en-US/sql/sql-server Developer Microsoft PostgreSQL Global Development Group Dwayne Richard Hipp Initial release 1989 1989 1989: Postgres, 1996: PostgreSQL 2000 Current release SQL Server 2022, November 2022 15.3, May 2023 3.42.0 (), May 2023 License Commercial or Open Source commercial restricted free version is available Open Source BSD Open Source Public Domain Cloud-based only Only available as a cloud service no 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 Microsoft SQL Server X exclude from comparison PostgreSQL X exclude from comparison SQLite X exclude from comparison Description Microsofts flagship relational DBMS 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 Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Please select another system to include it in the comparison. ![]() SQLite System Properties Comparison Microsoft SQL Server vs.
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