10일 20일 30일 1 2482 9 2 dbms_pipe.receive_me 3 OrQdtzcUGSzOlW 2 4 OrtMlyofMdFQpG 2 5 PG_SLEEP20 2 6 SLEEP20 2 7 WAITFOR 2 8 1 7 9 OR 6 10 Or. 6 11 9375 12 dbms_pipe.receive_messagea20 1 dbms_pipe.receive_me 1 2 OrQdtzcUGSzOlW 6 3 OrtMlyofMdFQpG 7 4 PG_SLEEP20 5 SLEEP20 6 WAITFOR 7 1 6 8 2482 1 9 OR 6 10 Or. 1 11 9375 1 12 dbms_pipe.receive_messagea20 3 1 dbms_pipe.receive_me 1 2 PG_SLEEP20 2 3 SLEEP20 4 WAITFOR 1 5 1 4 6 2482 2 7 OR 1 8 OrQdtzcUGSzOlW 3 9 OrtMlyofMdFQpG 1 10 Or. 1 11 9375 1 12 dbms_pipe.receive_messagea20 5 11위 - 20위