Handling of key/value pairs with hstore module. Editorial information provided by DB-Engines Name Microsoft SQL Server X exclude from comparison MySQL X exclude from comparison PostgreSQL X exclude from comparison Description Microsofts flagship relational DBMS Widely used open source RDBMS Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL Primary database model Relational DBMS Relational DBMS Key/Value like access via memcached API 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.