Mega Code Archive
Run a DBMS_PIPE RECEIVE_MESSAGE call to empty the local buffer
SQL> SET ECHO ON
SQL> SET SERVEROUTPUT ON SIZE 1000000
SQL>
SQL>
SQL>
SQL> SELECT DBMS_PIPE.RECEIVE_MESSAGE('Nowhere',0)
2 FROM dual;
DBMS_PIPE.RECEIVE_MESSAGE('NOW
------------------------------
1
1 row selected.
SQL>
SQL>
SQL>