In general, the query optimizer selects a plan that will return the entire result set in the shortest amount of time.
通常，查询优化器选择将在最短时间内返回整个结果集的计划。
However, when dealing with very large data sets, you can further improve the query response times of a native XML database by following a few general common sense guidelines.
但是，在处理超大型数据集时，您还可以通过遵循以下一般原则进一步改善原生xml数据库的查询响应时间。
To continue with the hypothetical DBMS, you could write a more general procedural query in something like the (Python-like) pseudo-code in Listing 2.
继续基于这个假设的DBMS进行讨论，可以编写更一般的、类似于清单2中(类似python)伪代码的过程化查询。
Our example retrieves a subset of one XML trade record stored in DB2, while a more general query involving all credit default swap trades would return forty full trade records.
我们的例子检索存储在DB 2中的一个XML交易记录的子集，而一个更加一般的、涉及所有信用违约掉期交易的查询，将会返回所有40个交易记录。
General requirements of spatial query in GIS are briefly outlined in this paper. A Variable query Algebra is formally defined for spatial query of GIS.
本文简单分析了满足GIS空间查询代数的一般要求，然后形式化地定义了一种适合于GIS空间查询的变量查询代数。
In this paper, we analyze the query action of software systems and put forward a general frame of query interface.
本文从界面的角度，研究软件系统中的查询操作，提出一种通用查询界面框架。
In general, the result of an expression in an XML query may consist of a heterogeneous sequence of elements, attributes, and primitive values, all of mixed type.
一般而言，XML查询表达式的结果可由异构的元素序列、属性和所有混合类型的原始值构成。
The information of teachers can only be added, deleted or altered by the supervisor, while a general user can only query teachers information.
管理员可以进行教师相关信息的添加、删除、修改；一般用户可查询教师基本信息、教学业绩、科研项目、论文著作及获奖情况。
In addition to general query such as single query, complex query, etc, our system also provide a query based structure and content.
并行数字图书馆系统除了提供目前数字图书馆提供的简单查询、复杂查询等一般查询功能之外，还提供了基于结构和内容的查询。
Learning process management system is an important supported method to develop query-based learning in Web-based environment, which providing a general and unified network platform.
学习过程管理系统是开展基于网络的研究性学习的重要支持手段，它为大学生开展基于网络的研究性学习提供了一个通用的、一体化的网络支持平台。
However, the existing general range query schemes on top of DHT infrastructures face problems that they cannot guarantee to return query results in a bounded delay.
但目前通用架构dht区间搜索技术面临搜索延迟难以保证的难题。
This example shows how to avoid raising exceptions when you call methods in a query expression without violating the general.
此示例演示在查询表达式中调用方法时如何避免引发异常，同时又不违反。
This example shows how to avoid raising exceptions when you call methods in a query expression without violating the general.
此示例演示在查询表达式中调用方法时如何避免引发异常，同时又不违反。
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