Oracle has released the Toplink O/R mapping framework as open source. They proposed a new persistence project, named Eclipse Persistence Platform (or EclipseLink for short), at the Eclipse Foundation and they are donating the Toplink source code to start the project. The EclipseLink will be a runtime project offering only libraries and no IDE tooling. [...]
At the MySQL Performance Blog there is a very interesting article about PHP‘s persistent MySQL connections (connection pooling) and why they are not enabled by default in the mysqli extension.
The federated storage engine in MySQL is a storage engine that allows you to link multiple database tables, that exists in different instances of the database server, into logical databases. The federated storage engine was added to MySQL at version 5.0 and allows us to do various cool things like synchronous replication (using federated tables [...]