Postgresql
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Postgresql is the most advanced relational database manger. It is an Open Source stable and multiplatform software.
Postgresql comes from the previous Postgres management system, a project started in 1986 by prof. Michael Stonebraker's group of the Berkeley California University.
In 1994 two students of Stonebraker, Andrew Yu and Jolly Chen, changed the Postquel query language with SQL. After the 1995 first version called Postgres95, came the second one in 1996, called PostgreSQL.
It is a relational object-based database (ORDBMS) which allows a better management of relational data compared to traditional object-oriented databases.
PostgreSQL is Open Source because it assures its users to use, copy, modify and spread the programme for any purposes, virtually with no costs.
It is coherent, strong, stable and it needs not much maintenance. This means a less basic speed. During the compilation, it is possible to be more permissive in the adopted policies and so improve the general performance.
It includes a graphic interface, PgAccess, which allows a correct management of complex queries and transactions without having to use command-line orders.
Even though it has been thought to apply to Unix environments, it can be supported by many platforms as Linux or Windows.
In 1994 two students of Stonebraker, Andrew Yu and Jolly Chen, changed the Postquel query language with SQL. After the 1995 first version called Postgres95, came the second one in 1996, called PostgreSQL.
It is a relational object-based database (ORDBMS) which allows a better management of relational data compared to traditional object-oriented databases.
PostgreSQL is Open Source because it assures its users to use, copy, modify and spread the programme for any purposes, virtually with no costs.
It is coherent, strong, stable and it needs not much maintenance. This means a less basic speed. During the compilation, it is possible to be more permissive in the adopted policies and so improve the general performance.
It includes a graphic interface, PgAccess, which allows a correct management of complex queries and transactions without having to use command-line orders.
Even though it has been thought to apply to Unix environments, it can be supported by many platforms as Linux or Windows.
