我试图在Oracle 10.2.0.4.0中使用DBMS_AQ.DEQUEUE_ARRAY函数。浏览队列的内容。有没有办法确定用于消息数组的类型?我可以使用一些“通用”类型吗?我正在尝试的内容如下:
CREATE or REPLACE TYPE I_NEED_THIS_TYPE AS ????
/
CREATE or REPLACE myFunction
return pls_integer
IS
dequeue_options DBMS_AQ.dequeue_options_t;
message_properties DBMS_AQ.message_properties_t;
msgPropArray DBMS_AQ.message_properties_array_t;
msgIdArray DBMS_AQ.msgid_array_t;
msgArray I_NEED_THIS_TYPE;
cMsgs pls_integer;
BEGIN
msgPropArray := DBMS_AQ.message_properties_array_t();
msgIdArray := dbms_aq.msgid_array_t();
msgArray := I_NEED_THIS_TYPE();
--where SOME_NAME and SOME_QUEUE_TABLE I get from
--select owner,name from user_queues;
dequeue_options.CONSUMER_NAME := 'SOME_NAME.SOME_QUEUE_TABLE';
dequeue_options.DEQUEUE_MODE := DBMS_AQ.BROWSE;
dequeue_options.NAVIGATION := DBMS_AQ.FIRST_MESSAGE;
dequeue_options.VISIBILITY := DBMS_AQ.IMMEDIATE;
dequeue_options.WAIT := DBMS_AQ.NO_WAIT;
dequeue_options.MSGID := null;
cMsgs := DBMS_AQ.DEQUEUE_ARRAY(
queue_name => 'MY_QUEUE_NAME',
dequeue_options => dequeue_options,
array_size => 30,
message_properties => msgPropArray,
payload_array => msgArray,
msgid_array => msgIdArray);
return cMsgs;
END;
/
我尝试了很多
的组合CREATE or REPLACE TYPE I_NEED_THIS_TYPE AS VARRAY(100) of CLOB;
CREATE or REPLACE TYPE I_NEED_THIS_TYPE AS VARRAY(100) of SYS.xmltype;
CREATE or REPLACE TYPE I_NEED_THIS_TYPE AS VARRAY(100) of xmltype;
CREATE or REPLACE TYPE I_NEED_THIS_TYPE AS OBJECT(
id NUMBER,
xmlData CLOB
)
DECLARE
TYPE assoc_array is TABLE OF CLOB index by pls_integer;
myData assoc_array;
我能够按预期使用DBMS_AQ.DEQUEUE函数,其消息参数是SYS.xmltype。
我无法使用管理员帐户,但确实具有创建类型和功能的权限。如果无法确定此信息,我应该要求管理员运行哪种类型的查询,以便我可以确定此信息?
谢谢!
答案 0 :(得分:0)
运行CREATE_QUEUE_TABLE
时,您的队列很可能是使用有效负载类型创建的。因此,您可以通过执行此查询找出队列的类型:
select OBJECT_TYPE
from DBA_QUEUE_TABLES
where OWNER = 'SOME_NAME' and QUEUE_TABLE = 'SOME_QUEUE_TABLE';
然后你的功能可以使用它:
type I_NEED_THIS_TYPE is varray(100) of <OBJECT_TYPE>;