User development, A new message was posted in the thread "howto setup jpa using oracle 10g unicode nvarchar2": http://community.jboss.org/message/528413#528413 Author : Michael Glöckner Profile : http://community.jboss.org/people/michael.gloeckner Message: -------------------------------------------------------------- Hi Wolfgang,   thanks for the quick answer.   I tried your suggestions and modify the standardjbosscmp-jdbc.xml. Unfortunatily these changes have been ignored.   I also updated my ojdbc14.jar to version 10.2.0.4.0 and changed my datasource from an  <xa-datasource>  to a   <local-tx-datasource>.   Additional i created an additional  type-mapping Oracle9iUNICODE and it looks like it got loaded. 2010-02-25 11:47:31,972 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] Starting jboss.jdbc:service=metadata 2010-02-25 11:47:32,050 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] Loading standardjbosscmp-jdbc.xml : file:/D:/jboss-portal-2.7.2/server/profile2/conf/standardjbosscmp-jdbc.xml .. 2010-02-25 11:47:32,378 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] added type-mapping: Oracle9i 2010-02-25 11:47:32,378 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] added type-mapping: Oracle9iUNICODE 2010-02-25 11:47:32,409 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] added type-mapping: Oracle8 2010-02-25 11:47:32,425 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] added type-mapping: Oracle7 .. 2010-02-25 11:47:32,503 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.metadata.MetaDataLibrary] Started jboss.jdbc:service=metadata   However, if my application got deployed jpa still creates varchar2(255) for all string fields.   Do you know if there are any issues with jboss 4.2.3GA?   Any help would be appreciated!   Cheers, Micha -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/528413#528413