参考
begin  
    dbms_xmlschema.registerschema(schemaurl => 'shiporder.xsd'  
                                 ,schemadoc => bfilename('XMLDIR', 'shiporder.xsd')  
                                 ,local     => false  
                                 ,gentypes  => true  
                                 ,genbean   => false  
                                 ,gentables => false  
                                 ,force     => false  
                                 ,owner     => 'XDB');  
end;