http://sqlrelay.sourceforge.net/
SQL Relay is a persistent database connection pooling, proxying and load balancing system for Unix and Linux.
SQL Relay is ideal for:
speeding up database-driven web-based applications enhancing the scalability of database-driven web-based applications distributing access to replicated databases throttling database access accessing databases from unsupported platforms migrating applications from one database to anotherSQL Relay supports the following database backends:
Oracle MySQL mSQL PostgreSQL Sybase MS SQL Server IBM DB2 Interbase Sybase SQLite Lago ODBCThe SQL Relay client API's support advanced database operations such as bind variables, multi-row fetches, client side result set caching and suspended transactions. SQL Relay is has native client API's for the following languages:
C C++ Perl Python PHP Ruby Java TCL ZopeSQL Relay provides drivers for the following database abstraction layers:
Perl DBD Python DB Ruby DBD PHP Pear DBAn application coded using another database's native client API may be able to use SQL Relay without modification. SQL Relay provides drop-in replacement libraries for:
MySQL PostgreSQLSQL Relay also features:
command line clients a GUI configuration tool extensive documentation本文地址：http://com.8s8s.com/it/it25327.htm