extents
英 [ɪksˈtɛnts]
美 [ɪkˈstɛnts]
n. 程度; 限度; 大小; 面积; 范围
extent的复数
双语例句
- Three extents can be seen in this table.
可以看到，该表中有三个区段。 - Given this behaviour ensure that there are a reasonable number of secondary extents.
此行为可确保有合理数量的次扩展。 - Extents are a collection of eight physically contiguous pages and are used to efficiently manage the pages.
区是八个物理上连续的页的集合，用来有效地管理页。 - This feature checks the consistency and the corruption on data and extents, which is currently done through the oncheck utility.
这个特性检查数据和区段的一致性和损坏，当前这是通过oncheck实用程序完成的。 - These include pages allocations from both mixed extents and uniform extents.
这些页包括从混合区和统一区中分配的页。 - Although you can allocate additional extents, the blocks themselves are allocated separately.
尽管你可以进行额外的扩展，但是块本身是被隔开分派的。 - Secondary log file extents are allocated dynamically by the queue manager when the primary files are exhausted.
次日志文件扩展由队列管理器在主文件耗尽的情况下动态分配。 - The extents of the viewport can be anything you want them to be.
viewport的扩展可以是您希望的任何东西。 - The second problem, of course, is that a table or an index with many highly active extents will suffer from performance degradation due to increased disk head movement and increased contention for head positioning with other objects in the database.
当然，第二个问题是，有很多高度活跃的盘区的一个表或索引将遭遇性能降低，因为磁头移动的增加和磁头与数据库中其他对象的位置争用的增加。 - When using circular logging log file extents are reused once they no longer contain active log data.
使用循环日志记录时，当日志文件扩展不再包括活动数据日志时，会将其进行重新使用。