- SQL Relay. SQL Relay is a persistent database connection pooling, proxying and load balancing system for Unix and Linux.
- MySQL Proxy. The MySQL Proxy is an application that communicates over the network using the MySQL Network Protocol and provides communication between one or more MySQL servers and one or more MySQL clients. In the most basic configuration, MySQL Proxy simply passes on queries from the client to the MySQL Server and returns the responses from the MySQL Server to the client.
- PL/Proxy. PL/Proxy is database partitioning system implemented as PL language.
- SQLB : SQL Load Balancer. The SQLB project is used to improve SQL requests to a database. It supports MySQL, PostgreSQL and Oracle(tm). It is a set of deamon programs that make multiple permanent connection to one or more database when they start. Then an external program, previously linked with the sqlb client library, can send SQL requests to these deamons and get the result without any need to make a connection/disconnection. The SQLB PHP and Perl modules provided here with SQLB are some examples of such programs.
