Note that you have to choose to optimize for random or sequential access.
In the B+ tree, copies of the keys are stored in the internal nodes; the keys and records are stored in leaves; in addition, a leaf node may include a pointer to the next leaf node to speed sequential access.
在B+树,这些键值的拷贝被存储在内部节点;键值和记录存储在叶子节点;另外,一个叶子节点可以包含一个指针,指向另一个叶子节点以加速顺序存取。
Its purpose is to allow applications to store and retrieve data via indexed and sequential access.
它的目的是允许应用程序通过索引和顺序访问来存储和检索数据。
An NPSI would take advantage of lookaside on the index, for example, with a nested loop join in which the outer rows drive sequential access to the inner.
一个NPSI 可能在索引上利用后备链表的优势,例如,使用一个嵌套循环联接,其中外部行驱动对内部行的顺序访问。
basic indexed sequential access method
Because of this, excess writing to CF card is eliminated and the sequential access speed is stabilized.
因此,消除了向CF卡的过多写入,并使顺序存取速度保持稳定。
In order to circumvent this problem, a semiconductor storage apparatus is proposed in which two areas of a bank for executing access in the unit of large-size sector and a bank for executing small-size data length access are arranged to execute error detection and correction processing in each size (refer to Japanese Patent Laid-Open No. 2008-084499 below). With this semiconductor storage apparatus, a bank for sequential access in the unit of sector and a bank for random access in the unit of data are arranged in a NAND-type flash memory.
为了解决这个问题,提出了一种半导体存储装置,其中,设置了用于以大尺寸区段为单位执行存取的库和用于执行少量数据长度存取的库的两个区域,以在每个尺寸中执行错误检测和校正处理(参见以下第2008-084499コナ日本专利公开)。采用该半导体存储装置,用于以区段为单位进行顺序存取的库和用于以数据为单位进行随机存取的库设置在NANDミヘ闪存内。
Select the driver corresponding to the type of indexed sequential access method (ISAM) or database you want to connect to, and then click Finish.
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"。
Learn More DataFlash - rich, low pin count, sequential access families ideal for program code, data storage, Serial EEPROM replacement
数据闪存 - 功能丰富、管脚数量少、顺序存取,是程序代码、数据存储以及替代串行 EEPROM 的理想选择
WekaIO Matrix supports small and large files, random and sequential access, and accelerates metadata access with distributed parallel access.
WekaIO Matrix 支持大小文件、随机和顺序访问,并且可通过分布式并行访问加快元数据访问速度。
Extensible Storage Engine (ESE), also known as JET Blue, is an ISAM (indexed sequential access method) data storage technology from Microsoft.
可扩展存储引擎(Extensible Storage Engine,缩写ESE)也称JET Blue,它是微软的一个ISAM(有索引顺序访问方法)数据存储技术。
Sequential Access: An access mode in which records are retrieved in the same order in which they were written.
顺序存取: 一种存取模式,在这种模式下,记录可以按照其写 入顺序进行检索。
Sequential access, as exhibited by data warehouse activities, does not produce as great a performance improvement with SSDs as does random access.
在数据仓库活动所用到的顺序存取中,SSD 的性能提升没有随机访问那么大。 ) 回页首