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