Hi Laurent, I think this topic or persistence in general would require more than one screencast to show people several options (like using the native drivers/database) up to higher level stuff mit OR mapping (Glorp) or Gemstone. Also well known (Oracle, MySQL, ...) vs. alternative databases (Magma, CouchDB, ...) or persistence in XML, ReferenceStreams, ... Maybe SQLite could be used for a simple database example using Pharo and SQL. There is a metacello config for it: http://n4.nabble.com/ANN-SQLite3-wrapper-updated-with-tests-td1294969.html Have a look at the test cases to see some code. Bye T. -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01