... row exclusive table lock 行排他表级锁 Exclusive Table Lock 行这种大的事务所产生的独占锁 LOCK TABLE 锁表 ; 此对象 ...
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Row Exclusive Table Lock 行级排它锁 ; 列互斥表锁定
The hang is caused by an exclusive row lock on table EMPLOYEE.
挂起是由表 EMPLOYEE 上一个独占式的行锁导致的。
This means that an exclusive lock is always placed on the indexed table while a functional index is being created or dropped.
这说明,在创建或删除函数索引时,执行索引的表中始终持有一个排他锁。
The load utility accomplishes this by requesting a super exclusive (Z) lock on the table and retaining this lock for the duration of the load operation (see Listing 4).
load 工具实现这一点的方法是,请求目标表上的一个超级排他(Z)锁,并在加载操作期间一直持有这个锁(参阅清单 4)。
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