摘要：Oriignal article: http://www.symfony-project.com/book/1_0/18-PerformanceClearing Selective Parts of the CacheDuring application development, you have to clear the cache in various situations: When you... 阅读全文

摘要：1. simple join two tables purpose:generate sql like: select * from photo p left join artist a on p.artist_id = a.artist_id where a.genre = 'something' and p.genre = 'something'code: if(!CriteriaUtil:... 阅读全文