Lorenzo Alberton

Reading / London, UK   ·   Contact me   ·  

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PHP UK 2010: RDBMS in the social networks age

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

27 February 2010

Speaking at the PHP Barcelona conference 2009

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

26 October 2009

New article: Graphs in the database, SQL meets social networks

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).   Read article

7 September 2009

Graphs in the database: SQL meets social networks

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

7 September 2009
27 June 2009

Speaking at the Dutch PHP Conference 2009

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

10 April 2009

Database identifiers, quoting and case sensitivity

Exploring database delimited identifiers and case sensitivity: the effect of quoting table and field names in the various DBMS.   Read article

3 December 2008

Updated articles to extract META informations from databases

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.   Read article

9 September 2008

PostgreSQL table audit

PostgreSQL table audit: a tutorial featuring a working example with triggers and a PL/TCL function. Or: for once in a while, PHP is not the right tool ;-)   Read article

20 February 2007

PostgreSQL cheat sheet

Cheat sheet for PostgreSQL 8. A handy reference of the PostgreSQL datatypes, an useful query reference (with an eye on the INFORMATION_SCHEMA tables) and a list of the internal PostgreSQL functions.   Read article

6 November 2006