These locks are converted to exclusive locks while performing the actual update.
在执行实际更新时，这些锁定被转换为独占锁定。
2
In the first session, execute the UPDATE statement shown in Listing 16, which places an exclusive lock on the row with department number B01.
在第一个会话中，执行清单16中的update语句，它对部门号为B01的部门行设置独占锁。
3
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