-- Create Typecreate or replace type note as Object( subject varchar2(100), Content varchar2(2000),CreateTime date);-- Create queue tablebegin sys.dbms_aqadm.create_queue_table(  queue_table => 'NOTETAB',  queue_payload_type => 'TEST.NOTE'end;--create queuebegin sys.dbms_aqadm.create_queue(  queue_name => 'NOTEQ',  queue_table => 'NOTETAB',  queue_type => sys.dbms_aqadm.normal_queue,  max_retries => 5,  retry_delay => 0,  retention_time => 0);end;--enqueuedeclarev_Message note;v_MsgId RAW(16);v_options DBMS_AQ.ENQUEUE_OPTIONS_T;v_properties DBMS_AQ.MESSAGE_PROPERTIES_T;v_Recipients DBMS_AQ.AQ$_RECIPIENT_LIST_T;begin   v_Message:=note(subject => 'note3',Content => 'content3',createTime => sysdate);--   v_Recipients(0) := sys.aq$_agent('NOTE','MTQ',0);--   v_properties.recipient_list := v_Recipients;   v_options.visibility :=DBMS_AQ.IMMEDIATE;   dbms_aq.enqueue(queue_name => 'noteq',enqueue_options => v_options,message_properties => v_properties,payload => v_Message,msgid => v_MsgId);   dbms_output.put_line('encode success,msgid is '||v_MsgId);end;--dequeuedeclarev_Message note;v_MsgId RAW(16);v_options DBMS_AQ.DEQUEUE_OPTIONS_T;v_properties DBMS_AQ.MESSAGE_PROPERTIES_T;v_Recipients DBMS_AQ.AQ$_RECIPIENT_LIST_T;begin--   v_Recipients(0) := sys.aq$_agent('NOTE','MTQ',0);--   v_properties.recipient_list := v_Recipients;   v_options.visibility :=DBMS_AQ.IMMEDIATE;   dbms_aq.dequeue(queue_name => 'noteq',dequeue_options => v_options,message_properties => v_properties,payload => v_Message,msgid => v_MsgId);   dbms_output.put_line('decode success,msgid is '||v_MsgId);   dbms_output.put_line('subject is '||v_Message.subject);   dbms_output.put_line('Content is '||v_Message.Content);   dbms_output.put_line('createTime is '||to_char(v_Message.createTime,'yyyy-mm-dd hh24:mi:ss'));end;