为了支持类似哈希表的数据结构和像分组这样的查询操作,由LINQ创建的匿名类型必须提供稳定的哈希码。
In order to support data structures like hash tables and query operations like grouping, anonymous types created by LINQ must provide stable hash codes.
此外,通过使用行业标准的“星型模式”(star schema)而不是更规范化的表结构,数据仓库经过了优化以实现高效的查询和快速的响应时间。
In addition, by using an industry standard "star schema", rather than a more normalized table structure, the data warehouse is optimized for efficient queries and quick response times.
你可以浏览数据库的表及其结构、在带有语法高亮的编辑器中编写SQL查询、运行查询并浏览结果。
Then you can browse the database tables, their structures, write SQL queries inside of an editor with syntax coloring, run the queries and browse results.
关系数据库使用结构化查询语言(Structured Query Language,SQL)以便从多个表和列中提取信息,但是键值存储仅限于对键列的操作。
Relational databases use Structured Query Language (SQL) to pull information from multiple tables and columns, but key-value stores are limited to operations on the key column.
定制界面模块主要实现根据库表结构在程序运行时动态生成数据的采集、浏览和查询界面。
The module of custom interface realized customizing data collection interface, view interface, query interface dynamically in the program's running time based onthe database structure.
创建查询时,实际是在从表或其他表结构对象(视图和某些用户定义的函数)中检索数据。
When you create a query, you are retrieving data from a table or other objects structured like tables - views and certain user-defined functions.
这几种词典机制都是以排序的线性表来提高查询效率,数据结构比较复杂且查询速度较慢。
All of the above three methods improve their inquiry efficiency using sorted liner table with complex data structures and poor inquiry efficiency.
本文针对前缀路由查询,根据前缀被访问的概率依据字母表树构建了一种基于概率的最优路由查询数据结构。
This paper constructs a data structure to implement optimal looking up by alphabet tree based on probabilities of the prefix to be accessed.
详细叙述了系统实现闭环控制、模糊控制器的结构、模糊控制规则的设计及模糊控制查询表的计算。
The implementation of closed loop control, the configuration of the fuzzy controller, the design of fuzzy control regulation and the calculation of fuzzy control inquiring table are described.
提出了一种基于查询表和非直接学习结构的适用于行波管放大器(TWTA)的基带预失真器。
Based on look-up table (LUT) and indirect learning architecture, a baseband predistorter was proposed for travel wave tube amplifier (TWTA).
如果相关,查询和视图设计器自动在表示表或表结构对象的矩形之间添加联接线。
If they are, the Query and View Designer automatically puts join lines between the rectangles representing the tables or table-structured objects.
DAO提供了其他的物件,以便使用资料表结构、储存查询以重复使用等等,这些将于稍后说明。
DAO provides additional objects, for working with table structure, saving queries for reuse, and so on, described later.
在基于分布式哈希表构造的对等网络中,路由表的结构影响关键字的查询效率。
In the peer-to-peer network based on Distributed Hash table (DHT), the structure of routing table impacts the efficiency of searching keywords.
在基于分布式哈希表构造的对等网络中,路由表的结构影响关键字的查询效率。
In the peer-to-peer network based on Distributed Hash table (DHT), the structure of routing table impacts the efficiency of searching keywords.
应用推荐