10일 20일 30일 1 1 4 2 OR 5 3 OR123 5 4 PG_SLEEP20 2 5 SLEEP20 2 6 WAITFOR123 2 7 1123 1 8 dbms_pipe.receive_messagea20 4 9 dbms_pipe.receive_messagea20123 4 10 PG_SLEEP20123 1 11 SLEEP20123 12 WAITFOR 2 13 dbms_pipe.receive_me 12 14 dbms_pipe.receive_me123 1 PG_SLEEP20 2 SLEEP20 6 3 WAITFOR123 6 4 1 6 5 1123 3 6 OR 2 7 OR123 4 8 dbms_pipe.receive_me 5 9 PG_SLEEP20123 3 10 SLEEP20123 5 11 WAITFOR 5 12 dbms_pipe.receive_messagea20 5 13 dbms_pipe.receive_messagea20123 1 14 dbms_pipe.receive_me123 1 1 PG_SLEEP20 2 2 1123 1 3 dbms_pipe.receive_me 1 4 OR 1 5 OR123 6 6 SLEEP20 7 WAITFOR 2 8 WAITFOR123 2 9 1 5 10 SLEEP20123 3 11 dbms_pipe.receive_messagea20 1 12 PG_SLEEP20123 4 13 dbms_pipe.receive_messagea20123 1 14 dbms_pipe.receive_me123 1 11위 - 20위