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