Re: [rules-users] Can someone help me ?

Rules themselves are plain text (DRL), so you can use any of Java's many persistence technologies to store the text. If you want to store a compiled, serialised KnowledgeBase; this is a BLOB and again you can use any of Java's many persistence technologies. If you want a "free" rule authoring environment too, then you could look into using Drools Guvnor as your rule repository, and whilst the underlying JCR using the File-System by default it can be configued to write to (m)any RDBMS. With kind regards, Mike 2011/7/27 祝英杰 <flyingbeecd(a)gmail.com&gt;