1) extended query language (EQL)
扩展的查询语句
2) semantic-based query expansion
语义查询扩展
1.
In semantic-based query expansion,computing term-concept association is a key step in finding associated concepts to describe the needed query.
概念相关度的计算是语义查询扩展中的关键一步。
4) query sentence
查询语句
1.
The optimization of query sentences is to select operation sequence with minimal costs in terms of given query so as to make query a time-saving and space-saving process.
查询语句的优化就是对于给定的查询,选择代价最小的操作序列,使查询过程既节省时间,又节省空间。
2.
In this paper, the design and implementation of the query sentence programming is described mainly.
文中重点阐述了查询语句例程化的设计分析与实现。
5) query
[英]['kwɪəri] [美]['kwɪrɪ]
查询语句
1.
Optimization Methods of Database SQL Query;
数据库SQL查询语句的优化方法
2.
How to design reasonable and efficient query
如何设计高效合理的查询语句
3.
In the development process of Database Applications,using good SQL query optimization strategies to build an inquiry system scientifically and rationally,which can develop practical and efficient database applications.
结合数据库理论,在数据库查询阶段,使用常量、拆分子句、临时表、存储过程等等优化方法对数据库SQL查询语句进行优化,可大大提高查询效率。
6) query language
查询语句
1.
By object—oriented method, an analysis is done with a typical query application example in the C++ on the query class hierarchy of the Gigabase, the C++ interface, and the advantages and disadvantages of the query language.
用面向对象的方法,分析了Gigabase数据库查询类的层次,C++APIs为用户应用提供的接口;比较了其查询语句的优缺点,给出了C++中查询应用程序的完整实例。
2.
The basic optimization methods of the SQL query language is presented by comprehending executive tactics of RDBMS optimizer and analyzing the factors that affect the SQL query language efficiency.
通过了解RDBMS优化器的执行策略，并分析了影响SQL查询语 句效率的因素，提出了SQL查询语句的基本优化方法，充分利用这些方法能提高SQL查询语句 的执行效率。
补充资料：转子语句和返回语句
主程序调用子程序以及从子程序返回主程序的语句。调用子程序的语句为转子语句，从子程序返回调用程序的语句为返回语句。在basic语言中，每次调用子程序时，必须成对使用，缺一个就会产生语法错误。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条