Wrapup of the PHP UK Conference 2010. Uploaded slides of my talk "RDBMS in the social networks age" about graphs in the database.

Speaking at the PHP Barcelona Conference 2009. Talk: "Trees in the Database: Advanced Data Structures".

Graphs in the database: how to store a graph data structure in a DBMS, and answer the most common queries typical of social networks, like "You might also know" or "You might also like", or "How you are connected to XYZ" (degrees of separation).

How to store a graph data structure in a DBMS, and query it to solve many of the problems of social networks.

Wrap-up of the Dutch PHP Conference, Amsterdam, 11-13 June 2009.

Speaking at the Dutch PHP Conference 2009. Talk: "Trees in the Database: Advanced Data Structures".

By popular request, I've updated my articles explaining how to retrieve meta data from your DBMS (Firebird SQL, PostgreSQL, Oracle, SQL Server). Have fun.

Extracting META informations from Interbase/Firebird System Tables (INFORMATION_SCHEMA)

Cheat sheet for the upcoming Firebird 2. A handy reference of the FB2 datatypes, an useful query reference and a list of the PHP Firebird/Interbase functions.

Some clarification about charset settings for the various DBMS (MySQL, PostgreSQL, Firebird/Interbase, Oracle, Sqlite) and a call for help for charset setting support in PEAR::MDB2.