Advanced Queuing - Oracle

Enqueuing and Dequeuing Of Messages
msgid RAW(16);
BEGIN
/* Return the payload into the host variable ’message’: */
dbms_aq.dequeue(queue_name => ’msg_queue’,
message_properties => message_properties,
dequeue_options => dequeue_options,
payload => :message,
msgid => msgid);
END;
END-EXEC;
/* Commit work :*/
EXEC SQL COMMIT;
/* Extract the components of message: */
EXEC SQL OBJECT GET SUBJECT,TEXT FROM :message INTO :subject,:txt;
printf("Dequeued Message \n");
printf("Subject :%s\n",subject);
printf("Text :%s\n",txt);
}
Enqueuing and Dequeuing of Object Type Messages Using OCI
#include
#include
#include
#include
struct message
{
OCIString *subject;
OCIString *data;
};
typedef struct message message;
struct null_message
{
OCIInd null_adt;
OCIInd null_subject;
OCIInd null_data;
};
typedef struct null_message null_message;
int main()
A-14 Oracle9i Application Developer’s Guide - Advanced Queuing