删除事件(DROP EVENT) 当然前提是这个事件存在,否则会产生ERROR 1513 (HY000): Unknown event错误,因此最好加上IF EXISTS .
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另一个优点是可以移动和删除事件。
随后,它们将接受创建或删除事件并对数据库执行修改。
All they do then is take the create or delete events and make the changes to the database.
当原始文件系统中发生写入或删除事件时,受影响的块将复制到快照中。
When a write or delete occurs in the original file system, the affected blocks are copied into the snapshot.
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