10일 20일 30일 1 sleep20123 2 pg_sleep20123 3 WAITFOR 2 4 waitfor123 1 5 1 4 6 dbms_pipe.receive_me123 5 7 dbms_pipe.receive_messagea20 8 OR123 4 9 SLEEP20 4 10 1123 11 dbms_pipe.receive_me 5 12 dbms_pipe.receive_messagea20123 2 13 OR 12 14 PG_SLEEP20 6 1 pg_sleep20123 2 OR 3 SLEEP20123 4 waitfor123 2 5 WAITFOR 3 6 dbms_pipe.receive_messagea20 7 7 1 2 8 dbms_pipe.receive_me 2 9 dbms_pipe.receive_me123 3 10 OR123 1 11 PG_SLEEP20 12 SLEEP20 2 13 1123 10 14 dbms_pipe.receive_messagea20123 1 PG_SLEEP20123 2 OR 3 3 WAITFOR123 2 4 SLEEP20123 2 5 WAITFOR 2 6 1 2 7 1123 4 8 dbms_pipe.receive_me 3 9 OR123 3 10 PG_SLEEP20 1 11 SLEEP20 1 12 dbms_pipe.receive_messagea20 1 13 dbms_pipe.receive_me123 1 14 dbms_pipe.receive_messagea20123 11위 - 20위
