In this scenario, a user retrieves data from the database with no locks.
在此方案中，用户从数据库中检索数据而不加任何锁。
Bulk Update Locks: Used when bulk-copying data into a table and the TABLOCK hint is specified.
大容量更新锁：在向表进行大容量数据复制且指定了TABLOCK提示时使用。
Concurrency control in business transaction terms usually involves generating and maintaining locks on data stores, such as relational databases.
并发控制在业务事务术语中通常涉及生成和维护数据存储上的锁，例如关系数据库。
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