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: [http://ovir.icp.ac.ru/oracle/doc/server/doc/scn73/ch12.htm#toc094 Oracle Server Manual]
==Compare PostgreSQL and MySQL==
* Postgre
: [http://www.postgresql.org/docs/9.0/static/index.html Tutorial]
: [http://www.mysql.com/downloads/connector/j/ Mysql Connector]
:The current versions are MySQL 5.1 and PostgreSQL 8.4.
#PostgreSQL is a unified database server with a single storage engine. MySQL has two layers, an upper SQL layer and a set of storage engines. [http://www.wikivs.com/wiki/MySQL_vs_PostgreSQL]