I dont understand the RESOURCE_LOCAL relation with the jta/non-jta datasource. If i use RESOURCE_LOCAL, i have to use the non-jta-datasource? And if i use JTA i have to use jta-datasource? If things are that way my question is: Should be only the tag? Another strange thing is that i see applications using JTA datasources with RESOURCE_LOCAL transaction type, i'm noob in this transactional-JEE world but those things sounds tottaly different to use them togheter for me. Am i right? Is there any good reading about it that you guys recommend? Thks View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4234767#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...