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