lost update meaning in English
丢失修改
Examples
- Read uncommitted ? permits dirty reads but not lost updates
未授权读取允许脏读取，但不允许更新丢失。 - Second lost updates problem ? a special case of an unrepeatable read
两次更新问题无法重复读取的特例。 - Lost update : one thread reads a record , a second thread updates the record , and then the first thread overwrites the second thread ' s update
线程1读了一条记录，线程2更新了一条记录，接着线程1覆盖了线程2的更新。 - A lower isolation level increases the ability of many users to access data at the same time , but increases the number of concurrency effects such as dirty reads or lost updates users might encounter
较低的隔离级别可以增强许多用户同时访问数据的能力，但也增加了用户可能遇到的并发副作用（例如脏读或丢失更新）的数量。 - A lower isolation level increases the ability of many users to access data at the same time , but increases the number of concurrency effects , such as dirty reads or lost updates , that users might encounter
较低的隔离级别会提高多名用户同时访问数据的能力，但是也会增加用户可能遭遇的并发影响（如脏读或更新丢失）的次数。