extents
英 [ɪksˈtɛnts]
美 [ɪkˈstɛnts]
n. 程度; 限度; 大小; 面积; 范围
extent的复数
双语例句
- For maximum efficiency, frequently accessed tables should have as few extents as possible.
为达到效率最大化，频繁访问的表区段应当越少越好。 - 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。 - In2008, a majority of safety barrier and isolator suppliers see a declining performance to different extents.
2008年，大部分安全栅和隔离器供应商业绩出现了不同程度的下滑。 - 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。 - There are two problems with tables that have lots of extents, or at least there used to be.
那些有很多盘区、或者至少曾经有过的表，存在两个问题。 - 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。 - 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。 - 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。 - RESULTS Twenty dermal ulcer patients recovered, 6 mummification necrosis patients improved at some extents.
结果26例中有20例皮肤溃疡者基本痊愈，6例干性坏疽者有不同程度的好转。 - 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。