On the PHP blog from IBM developerWorks today, there's a new post that takes a look at Service Data Objects.

I presented an introduction to SDO for PHP at the Zend/PHP Conference and Expo a couple of weeks ago. The session was very well attended and there were some good questions at the end. Overall the presentation went well, but I could have done with more scenarios to address SDO's real strengths and the questions which arose. To continue the discussion and help clarify a few things, I thought I'd blog a little about SDO. So here goes...

He answers a question mentioned at the Zend/PHP Conference: "Does the Relational Database Access Service optimize the SQL queries it creates in order to remove redundancies?" His short anser - "no". He uses the example of making an update to a contact database to show this point further, though...