Hello, i am using Jboss 4.0.4 with EJB2.1 and a Oracle Database. In my database there are tables containing CLOB fields. The EJB accessing these tables use a "special" jbosscmp-jdbc.xml in which i explicitely define the CLOB type for the relevant fields. <cmp-field> | <field-name>lsData</field-name> | <column-name>LSDATA</column-name> | <jdbc-type>CLOB</jdbc-type> | <sql-type>CLOB</sql-type> | </cmp-field> That works fine but makes me have to use different jbosscmp-jdbc.xml files for different databases (e.g SQLServer). Maybe i misunderstood something but i think normaly such type-mapping has do be done in standardjbosscmp-jdbc.xml in the conf directory of my used server implementation. But when i define the CLOB mapping in that file it does not work. <mapping> | <java-type>java.lang.String</java-type> | <jdbc-type>CLOB</jdbc-type> | <sql-type>CLOB</sql-type> | </mapping> JBoss does not throw neither an exception nor error or warning. The accessing method in the bean just returns null such as if the db field contains null. I draw the conclusion, that JBoss just has problems reading the db data of the CLOB field. Can someone explain why my the "global" mapping does not work? Maybe i just forgot something else? Thanks for your help Harri E. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4038407#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...