Tcl Server-side scripts Stored procedures Transact SQL. Streaming API for large objects Supported programming languages C# Secondary indexes yes yes yes SQL Support of SQL yes yes with proprietary extensions yes standard with numerous extensions APIs and other access methods ADO.NET yes yes yes specific XML-type available, but no XML query functionality. support for XML data structures, and/or support for XPath, XQuery or XSLT. Windows Data scheme yes yes Schemaless in JSON and XML columns yes Typing predefined data types such as float or date yes yes yes XML support Some form of processing data in XML format, e.g. Implementation language C++ C and C++ C Server operating systems Linux Leverage any extension and get SSH access. ScaleGrid for PostgreSQL: Fully managed PostgreSQL DBaaS hosting On-Premises and on clouds such as AWS, Azure, GCP and DigitalOcean with no vendor lock-in. 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 921.60 Rank #3 Overall #3 Relational DBMS Score 1256.01 Rank #1 Overall #1 Relational DBMS Score 617.83 Rank #4 Overall #4 Relational DBMS Website Technical documentation /en-US/sql/sql-server /en/database Developer Microsoft Oracle PostgreSQL Global Development Group Initial release 1989 1980 1989 1989: Postgres, 1996: PostgreSQL Current release SQL Server 2022, November 2022 21c, January 2021 15.3, May 2023 License Commercial or Open Source commercial restricted free version is available commercial restricted free version is available Open Source BSD Cloud-based only Only available as a cloud service no no no DBaaS offerings (sponsored links) Database as a Service Spatial DBMS with Oracle Spatial and Graph Document store Handling of key/value pairs with hstore module. Editorial information provided by DB-Engines Name Microsoft SQL Server X exclude from comparison Oracle X exclude from comparison PostgreSQL X exclude from comparison Description Microsofts flagship relational DBMS Widely used RDBMS Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL Primary database model Relational DBMS 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. PostgreSQL System Properties Comparison Microsoft SQL Server vs.
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