SQL> r
1* select sid,blocking_session ,event from v$session where blocking_session is not null
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
5 2089 cursor: pin S wait on X
6 2089 cursor: pin S wait on X
26 2089 cursor: pin S wait on X
57 2089 cursor: pin S wait on X
76 2089 cursor: pin S wait on X
98 2089 cursor: pin S wait on X
99 2089 cursor: pin S wait on X
100 2089 cursor: pin S wait on X
126 2089 cursor: pin S wait on X
147 2089 cursor: pin S wait on X
152 2089 cursor: pin S wait on X
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
171 2089 cursor: pin S wait on X
173 2089 cursor: pin S wait on X
174 2089 cursor: pin S wait on X
196 2089 cursor: pin S wait on X
197 2089 cursor: pin S wait on X
201 2089 cursor: pin S wait on X
218 2089 cursor: pin S wait on X
221 2089 cursor: pin S wait on X
223 2089 cursor: pin S wait on X
242 2089 cursor: pin S wait on X
292 2089 cursor: pin S wait on X
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
316 2089 cursor: pin S wait on X
317 2089 cursor: pin S wait on X
318 2089 cursor: pin S wait on X
319 2089 cursor: pin S wait on X
340 2089 cursor: pin S wait on X
341 2089 cursor: pin S wait on X
363 2089 cursor: pin S wait on X
366 2089 cursor: pin S wait on X
390 2089 cursor: pin S wait on X
391 2089 cursor: pin S wait on X
392 2089 cursor: pin S wait on X
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
414 2089 cursor: pin S wait on X
418 2089 cursor: pin S wait on X
436 2089 cursor: pin S wait on X
437 2089 cursor: pin S wait on X
438 2089 cursor: pin S wait on X
460 2089 cursor: pin S wait on X
463 2089 cursor: pin S wait on X
484 2089 cursor: pin S wait on X
485 2089 cursor: pin S wait on X
506 2089 cursor: pin S wait on X
507 2089 cursor: pin S wait on X
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
509 2089 cursor: pin S wait on X
534 2089 cursor: pin S wait on X
535 2089 cursor: pin S wait on X
555 2089 cursor: pin S wait on X
558 2089 cursor: pin S wait on X
559 2089 cursor: pin S wait on X
583 2089 cursor: pin S wait on X
603 2089 cursor: pin S wait on X
608 2089 cursor: pin S wait on X
651 2089 cursor: pin S wait on X
674 2089 cursor: pin S wait on X
SID BLOCKING_SESSION EVENT
---------- ---------------- ----------------------------------------------------------------
677 2089 cursor: pin S wait on X
678 2089 cursor: pin S wait on X
679 2089 cursor: pin S wait on X
699 2089 cursor: pin S wait on X
703 2089 cursor: pin S wait on X
706 2089 cursor: pin S wait on X
727 2089 cursor: pin S wait on X
752 2089 cursor: pin S wait on X
772 2089 cursor: pin S wait on X
798 2089 cursor: pin S wait on X
根据SID查询具体信息
SQL> select sid,serial#,username,machine,blocking_session from v$session where sid= 2089;