場景：

　　一用戶YDL在下PO單的時候突然斷電(或死機)，PO單錄到一半。重新打開此PO單后，無法修改訂單數據。

　　提示：Could not reserve record [2 tries]. Keep trying?

在metalink上搜索，找到如下信息：

POXPOEPO -- Cannot Modify Purchase Order - FRM-40501: ORACLE Error: Unable to Reserve Record for Update or Delete [ID 224088.1]				?
?		修改時間 12-FEB-2007?????類型 PROBLEM?????狀態 PUBLISHED			?

• fact: Oracle Purchasing
• fact: POXPOEPO - Enter Purchase Orders
• symptom: Cannot modify purchase order
• symptom: Receive errors when opening Purchase Order form
• symptom: Could not reserve record [2 tries]. Keep trying?
• symptom: FRM-40501: ORACLE error: unable to reserve record for update or delete.
• cause: The record in PO_HEADERS_ALL corresponding to the purchase order was locked.

fix: Remove lock on the record in PO_HEADERS_ALL. To remove the lock bounce the database or kill the session that has the table locked. the locks can be reviewed in the table v$lock

---

?

?

?--查找頭的object_id
?select * from all_objects t
?where t.object_name = 'PO_HEADERS_ALL'--44937????? 45084
?
?--查找鎖信息
?select? * from v$lock t
?WHERE t.ID1 = 44937
?or t.ID1 = 45084;

?--查找行的object_id
?select * from all_objects t
?where t.object_name = 'PO_LINES_ALL'--44965 45088
?
?--查詢行的鎖信息
? select? * from v$lock t
?WHERE t.ID1 IN (44965,45088);

?--查詢阻塞會話和其他信息
select 'blocker('||lb.sid||':'||sb.username||')-sql:'|| qb.sql_text? blockers,
?????? 'waiter ('||lw.sid||':'||sw.username||')-sql:'|| qw.sql_text? waiters
from? v$lock lb,?
???? v$lock lw,
???? v$session sb,
???? v$session sw,
???? v$sql???? qb,
???? v$sql???? qw
????
where lb.sid=sb.sid
and? lw.sid=sw.sid
and? sb.prev_sql_addr=qb.address
and? sw.sql_address=qw.address
and? lb.id1=lw.id1
and? sw.lockwait is not null
and? sb.lockwait is null
and? lb.block=1

???	BLOCKERS	WAITERS
1	blocker(276:APPS)-sql:SELECT /* $Header: fdffvs.lc 115.54 2006/01/16 12:57:02 hgeorgi ship $ */ event_code, user_exit FROM fnd_flex_validation_events WHERE flex_value_set_id = :id ORDER BY event_code	waiter (364:APPS)-sql:UPDATE PO_HEADERS_ALL SET APPROVED_FLAG = DECODE(NVL(APPROVED_FLAG,'N'),'N','N','F','F','R'), AUTHORIZATION_STATUS = DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'INCOMPLETE','INCOMPLETE','REJECTED','REJECTED', 'REQUIRES REAPPROVAL'), CLOSED_CODE = 'OPEN', CLOSED_DATE = NULL, REVISION_NUM = DECODE(:B6 , '', REVISION_NUM, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , REVISION_NUM + 1, REVISION_NUM), REVISION_NUM)), REVISED_DATE = DECODE(:B6 , '', REVISED_DATE, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , :B5 , REVISED_DATE), REVISED_DATE)), LAST_UPDATE_DATE = :B4 , LAST_UPDATED_BY = :B3 , LAST_UPDATE_LOGIN = :B2 WHERE PO_HEADER_ID = :B1?
2	blocker(276:APPS)-sql:SELECT /* $Header: fdffvs.lc 115.54 2006/01/16 12:57:02 hgeorgi ship $ */ event_code, user_exit FROM fnd_flex_validation_events WHERE flex_value_set_id = :id ORDER BY event_code	waiter (364:APPS)-sql:UPDATE PO_HEADERS_ALL SET APPROVED_FLAG = DECODE(NVL(APPROVED_FLAG,'N'),'N','N','F','F','R'), AUTHORIZATION_STATUS = DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'INCOMPLETE','INCOMPLETE','REJECTED','REJECTED', 'REQUIRES REAPPROVAL'), CLOSED_CODE = 'OPEN', CLOSED_DATE = NULL, REVISION_NUM = DECODE(:B6 , '', REVISION_NUM, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , REVISION_NUM + 1, REVISION_NUM), REVISION_NUM)), REVISED_DATE = DECODE(:B6 , '', REVISED_DATE, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , :B5 , REVISED_DATE), REVISED_DATE)), LAST_UPDATE_DATE = :B4 , LAST_UPDATED_BY = :B3 , LAST_UPDATE_LOGIN = :B2 WHERE PO_HEADER_ID = :B1?
3	blocker(276:APPS)-sql:SELECT /* $Header: fdffvs.lc 115.54 2006/01/16 12:57:02 hgeorgi ship $ */ event_code, user_exit FROM fnd_flex_validation_events WHERE flex_value_set_id = :id ORDER BY event_code	waiter (364:APPS)-sql:UPDATE PO_HEADERS_ALL SET APPROVED_FLAG = DECODE(NVL(APPROVED_FLAG,'N'),'N','N','F','F','R'), AUTHORIZATION_STATUS = DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'INCOMPLETE','INCOMPLETE','REJECTED','REJECTED', 'REQUIRES REAPPROVAL'), CLOSED_CODE = 'OPEN', CLOSED_DATE = NULL, REVISION_NUM = DECODE(:B6 , '', REVISION_NUM, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , REVISION_NUM + 1, REVISION_NUM), REVISION_NUM)), REVISED_DATE = DECODE(:B6 , '', REVISED_DATE, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , :B5 , REVISED_DATE), REVISED_DATE)), LAST_UPDATE_DATE = :B4 , LAST_UPDATED_BY = :B3 , LAST_UPDATE_LOGIN = :B2 WHERE PO_HEADER_ID = :B1?
4	blocker(276:APPS)-sql:SELECT /* $Header: fdffvs.lc 115.54 2006/01/16 12:57:02 hgeorgi ship $ */ event_code, user_exit FROM fnd_flex_validation_events WHERE flex_value_set_id = :id ORDER BY event_code	waiter (364:APPS)-sql:UPDATE PO_HEADERS_ALL SET APPROVED_FLAG = DECODE(NVL(APPROVED_FLAG,'N'),'N','N','F','F','R'), AUTHORIZATION_STATUS = DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'INCOMPLETE','INCOMPLETE','REJECTED','REJECTED', 'REQUIRES REAPPROVAL'), CLOSED_CODE = 'OPEN', CLOSED_DATE = NULL, REVISION_NUM = DECODE(:B6 , '', REVISION_NUM, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , REVISION_NUM + 1, REVISION_NUM), REVISION_NUM)), REVISED_DATE = DECODE(:B6 , '', REVISED_DATE, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , :B5 , REVISED_DATE), REVISED_DATE)), LAST_UPDATE_DATE = :B4 , LAST_UPDATED_BY = :B3 , LAST_UPDATE_LOGIN = :B2 WHERE PO_HEADER_ID = :B1?
5	blocker(276:APPS)-sql:SELECT /* $Header: fdffvs.lc 115.54 2006/01/16 12:57:02 hgeorgi ship $ */ event_code, user_exit FROM fnd_flex_validation_events WHERE flex_value_set_id = :id ORDER BY event_code	waiter (364:APPS)-sql:UPDATE PO_HEADERS_ALL SET APPROVED_FLAG = DECODE(NVL(APPROVED_FLAG,'N'),'N','N','F','F','R'), AUTHORIZATION_STATUS = DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'INCOMPLETE','INCOMPLETE','REJECTED','REJECTED', 'REQUIRES REAPPROVAL'), CLOSED_CODE = 'OPEN', CLOSED_DATE = NULL, REVISION_NUM = DECODE(:B6 , '', REVISION_NUM, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , REVISION_NUM + 1, REVISION_NUM), REVISION_NUM)), REVISED_DATE = DECODE(:B6 , '', REVISED_DATE, DECODE(NVL(AUTHORIZATION_STATUS,'INCOMPLETE'), 'APPROVED', DECODE(REVISION_NUM, :B6 , :B5 , REVISED_DATE), REVISED_DATE)), LAST_UPDATE_DATE = :B4 , LAST_UPDATED_BY = :B3 , LAST_UPDATE_LOGIN = :B2 WHERE PO_HEADER_ID = :B1?

?--根據上面查詢結果查詢session表中的信息
?SELECT * FROM v$session where sid in (364,276);
?
?--kill
?alter system kill session '364,63776';?

---

?

result：最后該PO單可修改。

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