update lock 中文意思是什麼

update lock 解釋
更新鎖
  • update : vt. 〈美國〉（通過修訂、增補）使（書等）成為最新式的[現代化的]，使（書等）與（當前條件）相適應。n. 【自動化】（供電子計算機使用的）最新情報。
  • lock : n 1 鎖，閂，栓。2 （運河等的）船閘。3 制輪楔。4 【機械工程】氣閘，氣塞，鎖氣室。5 【軍事】槍機。6...
  1. If two transactions acquire shared - mode locks on a resource and then attempt to update data concurrently, one transaction attempts the lock conversion to an exclusive lock

    如果兩個事務獲得了資源上的共享模式鎖，然後試圖同時更新數據，則一個事務嘗試將鎖轉換為排他鎖（ x鎖） 。
  2. When you want to update address information, you must first call bapi employeet enqueue to lock the hr record for this employee

    如果需要更新地址信息，首先必須調用bapi _ employeet _ enqueue鎖定該雇員的hr記錄。
  3. On oracle databases, the weakest lock is an update lock

    在oracle數據庫上，最弱的鎖是更新鎖。
  4. Specifies that a bulk update table - level lock is acquired for the duration of the bulk load operation ; otherwise, a row - level lock is acquired

    指定在大容量加載操作期間獲取大容量更新表級別的鎖；否則，獲取行級別的鎖。
  5. Indicates shared access to a resource with the intent of acquiring update locks on subordinate resources in the lock hierarchy

    指示對有意在鎖層次結構中的從屬資源上獲取更新鎖的資源進行共享訪問。
  6. This update addresses the " stop 0x0e3 error occurs when redirector thread tries to release a lock " issue in windows 2000

    此更新解決windows 2000中「當重定向器線程試圖釋放鎖定時發生的終止0x0e3錯誤」的問題。
  7. Event, to insert current session - item information into the data store or update existing session - item information in the data store with current values, to update the expiration time on the item, and to release the lock on the data

    方法，以便將當前的會話項信息插入到數據存儲區或使用當前值更新數據存儲區中的現有會話項信息，更新項上的到期時間並釋放對數據的鎖定。
  8. It is used to prevent a common form of deadlock that occurs when multiple sessions lock resources for potential update at a later time

    用於防止一種常見的死鎖，這種死鎖在多個會話鎖定資源以便稍後對資源進行更新時發生。
  9. Cause : the nowait keyword forced a return to the command prompt because a resource was unavailable for a lock table or select for update command

    原因:對表進行相關操作時，該表被鎖定，或表正在被其他程序佔用，導致系統忙。
  10. This update addresses the " stop 0x0e3 error occurs when redirector thread tries to release a lock " issue in windows 2000, and is discussed in microsoft knowledge base article 810038

    此更新解決windows 2000中「當重定向器線程試圖釋放鎖定時發生的終止0x0e3錯誤」的問題，在microsoft知識庫（ kb ）文章810038中有相關論述。
  11. Indicates an update lock acquired on resources that may eventually be updated

    指示對最終可能更新的資源獲取的更新鎖。
  12. Only one transaction can obtain an update lock to a resource at a time

    一次只有一個事務可以獲得資源的更新鎖（ u鎖） 。
  13. If a transaction modifies a resource, the update lock is converted to an exclusive lock

    如果事務修改資源，則更新鎖（ u鎖）轉換為排他鎖（ x鎖） 。
  14. Lock mechanism of that concurrency control can effectively void the dead - lock, two phase commit can guarantee atomicity of the distribute transaction while distributed transaction is executed with which the consistency of the database system is guaranteed. the method of checking the inconsistent is mainly to track the update status of multiple repetitions when distributed and parallel database system is not busy, and to detect inconsistent early. consequently, system can be recovered to best status

    數據庫在執行分散式事務的時候，並發控制的鎖機制可有效的預防分散式事務中的死鎖現象，兩階段的提交協議可以保證分散式事務執行的原子性，從而有效地保證了分散式并行數據庫系統的一致性，不一致性檢測的方法主要是在保證系統非繁忙狀態下對多個副本間的數據庫的更新狀態進行跟蹤，也保證了數據庫多個副本間不一致狀態的及早發現，從而使系統及時地恢復到最佳運行狀態，提高了分散式并行數據庫系統的可用性。
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