实际上，当该特性被启用，并且INSERT操作要求一个新的或重用的块时，DB 2将在块上采用一个独占的(X)锁，以便将它添加到目标单元。
In fact, when this feature is enabled, and the INSERT operation requires a new or reused block, DB2 will take an exclusive (x) lock on the block in order to add it to the target cell.
基于这种情况，这时的界面应该采用独占姿态，完全占据屏幕空间。
Interfaces, in this regard, should resemble sovereign posture applications, taking the full-screen real estate.
尝试取得指定之物件的独占锁定，并且完整设定值，指出是否采用锁定。
Attempts to acquire an exclusive lock on the specified object, and atomically sets a value that indicates whether the lock was taken.
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