10일 20일 30일 1 OR 1 2 SLEEP20123 13 3 1123 5 4 dbms_pipe.receive_me 5 PG_SLEEP20 1 6 SLEEP20 1 7 SLEEP20123123 9 8 1 7 9 OR123123 4 10 1123123 1 11 dbms_pipe.receive_messagea20 6 12 dbms_pipe.receive_messagea20123123 9 13 PG_SLEEP20123 3 14 WAITFOR 11 15 dbms_pipe.receive_me123 6 16 dbms_pipe.receive_me123123 2 17 dbms_pipe.receive_messagea20123 2 18 PG_SLEEP20123123 4 19 WAITFOR123 1 20 WAITFOR123123 3 21 OR123 9 1 OR 4 2 1 1 3 dbms_pipe.receive_me 1 4 PG_SLEEP20 1 5 SLEEP20 3 6 WAITFOR 7 1123 8 dbms_pipe.receive_messagea20 1 9 SLEEP20123 10 SLEEP20123123 11 OR123123 12 PG_SLEEP20123 13 1123123 14 dbms_pipe.receive_me123 15 PG_SLEEP20123123 16 WAITFOR123123 17 dbms_pipe.receive_me123123 18 dbms_pipe.receive_messagea20123 19 dbms_pipe.receive_messagea20123123 20 OR123 21 WAITFOR123 1 OR 4 2 1 1 3 dbms_pipe.receive_me 1 4 PG_SLEEP20 1 5 SLEEP20 1 6 WAITFOR 7 dbms_pipe.receive_messagea20 8 1123 9 SLEEP20123 10 SLEEP20123123 11 OR123123 12 PG_SLEEP20123 13 1123123 14 dbms_pipe.receive_me123 15 PG_SLEEP20123123 16 WAITFOR123123 17 dbms_pipe.receive_me123123 18 dbms_pipe.receive_messagea20123 19 dbms_pipe.receive_messagea20123123 20 OR123 21 WAITFOR123 11위 - 20위