特定的控制流会决定以何种顺序访问数据。
The specified control flow determines the order in which the data is accessed.
非常简单，随机访问比顺序访问的速度慢。
Quite simply, random access is slower than sequential access.
指定是否按键顺序访问集合成员。
Specifies if members of a collection are accessed in Key order.
磁带是顺序访问存储，能够解决上面所提问题。
Magnetic tape is sequential access storage and can solve the problem mentioned above.
可以按顺序访问的数据，如存储在磁带上的数据。
Data that is accessible sequentially, such as data stored on magnetic tape.
使用顺序访问，磁盘头可以直接移动到磁盘的下一个可用磁道。
With sequential access, the disk head can move directly to the next available track on the disk.
这些片段可能以未预料的顺序访问，可能是有敌意的，也可能是无敌意的。
These fragments can be approached in unexpected sequences, maliciously or not.
甚至还将研究一些可能影响性能的文件系统属性，比如顺序访问和随机访问。
You'll even examine some file system attributes, such as sequential and random access, which can affect performance.
可使用此方法返回的流顺序访问内存映射文件，如如进程间通信。
You can use the stream returned by this method for sequential access to a memory-mapped file, such as for inter-process communications.
它提供了一种方法没有对象的顺序访问聚合对象的暴漏底层的细节。
Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
拖到绘图页后，可以表示按顺序访问的数据，如存储在磁带上的数据。
Drag onto the page to represent sequentially accessible data, such as data on magnetic tape.
提供了一种在不暴漏对象底层细节的情况下顺序访问聚合对象的方法。
Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
如果通常是顺序访问大量行(该表可能进行了群集)，那么比较大的页大小会更有效。
If typically more rows are accessed sequentially (maybe the table is clustered), then the larger page size is more efficient.
DB 2维护两个lru列表，一个用于被随机访问的页，另一个用于被顺序访问的页。
DB2 maintains two LRU lists, one for randomly accessed pages, and another for sequentially accessed pages.
提供一种方法顺序访问一个聚合对象中的各个元素，而又不暴露其内部表示。
Provides a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
提供一种方法顺序访问一个聚合对象中各个元素，而又不需暴露该对象的内部表示。
Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.
访问计划定义按什么顺序访问表，使用哪些索引，以及用何种连接(join)方法来关联数据。
An access plan defines the order for accessing tables, which indexes are used, and by what kind of join methods data is correlated.
这些系统的用户群实际上有重叠，有些用户最终需要按顺序访问所有三个系统，以收集必要的信息。
These systems were actually utilized by overlapping user groups, with some users ultimately required to sequentially access all three systems to gather the necessary information.
迭代器模式：提供一种方法顺序访问一个聚合对象中的各个元素，而又不暴露其内部的表示。
The Iterator Pattern:provides a way to access the elements of an aggregate object sequentially without exposing its underying representation.
为了提高CPU的利用率，采用了多线程技术，并且设计了按同一顺序访问对象的方法以防止死锁发生。
In order to improve CPU utilization, use of multi-threading technology, and design a same sequential access method to prevent the deadlock.
选择与要连接的索引顺序访问方法 （ISAM）或数据库的类型相对应的驱动程序，然后单击“完成”。
Select the driver corresponding to the type of indexed sequential access method (ISAM) or database you want to connect to, and then click Finish .
实验结果表明，改进后的算法无论是对顺序访问模式还是随机访问模式，都能够有效的提高存储系统的性能。
The results show that the new algorithm can improve the performance of storage system in both random and sequential requests.
自适应导航的另一个例子是定制页面上所显示的链接，以便领域专家能够以有别于具有有限领域知识的用户的另外一种顺序访问它们。
Another example of adaptive navigation is customizing the links displayed on the page such that domain experts would access them in a different order than a user with limited domain knowledge.
而且，在多数数据处理例程中，都需要对rope字符进行顺序访问，在这种情况下，rope的迭代器能够提供分摊的o(1)访问速度。
And, in most data-processing routines, sequential access to a rope's characters is what's required, in which case a rope iterator can provide amortized o (1) access speed.
批处理和查询应用程序通常要进行大量的顺序处理，而用于OLTP的数据访问往往更具有随机性。
Batch and query applications typically do a lot of sequential processing, while data access for OLTP tends to be more random in nature.
虽然这样说，但是实际上应该顺序地访问位于边缘的逻辑卷，以获得更好的性能。
That being said, logical volumes being accessed sequentially should actually be placed on the edge for better performance.
当程序访问一个文件的两个页面时，VMM假定该程序将采用顺序的方法不断地尝试访问该文件。
When a program accesses two pages of a file, VMM assumes that the program keeps trying to access the file in a sequential method.
通过仔细地观察读写序列计数，可以进一步确定访问是顺序的还是随机的。
By looking at the read and write sequence counts in detail, you can further determine if the access is sequential or random.
哈希表在访问没有明显顺序的数据方面难以置信的有用。
Hashes are incredibly useful for accessing data that does not have an obvious ordering.
接下来您可以访问刚才所获得的顺序集合中的元素。
You can then access elements from the ordered collection you've just obtained.
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