extents

英 [ɪksˈtɛnts]

美 [ɪkˈstɛnts]

n.  程度; 限度; 大小; 面积; 范围
extent的复数

计算机

双语例句

• Subsidies are used to varying extents in both market economies and in command economies.
  在市场经济和指令性经济中都存在不同范围的补贴。
• However, the REPACK option does not necessarily reduce the number of extents.
  然而，REPACK选项不一定减少盘区数量。
• 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。
• 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 linear logging on the other hand log file extents will be continually allocated as required.
  另一方面，使用线性日志记录时，将根据需要继续分配日志文件扩展。
• 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。
• 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。
• 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。
• Log file extents can be specified as primary or secondary.
  日志文件扩展可以指定为主扩展或次扩展。
• If tables have too many extents, it is very likely that those extents are interleaved.
  如果表拥有太多区段，那些区段就很可能是交错的。