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Oracle高级队列(Advanced Queue)简单实例
类别:Oracle数据库   作者:码皇   来源:互联网   点击:

这篇文章主要介绍了Oracle高级队列(Advanced Queue)简单实例的相关资料,需要的朋友可以参考下

Oracle高级队列(Advanced Queue)简单实例

最简单的高级队列的练习,基本上都使用了默认参数。

    -- 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;

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