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syntactic query optimization [计] 语法询问优化
The query processor ran out of stack space during query optimization. 查询处理器在优化查询时堆栈空间不足。
ON Any missing statistics required by a query for optimization are automatically built during query optimization. 在查询优化期间,将自动生成优化查询需要但缺少的任何统计信息。
Finally, this discussion of query languages may leave you wondering about a related topic: query optimization. 最后,关于查询语言还有一个相关的主题:查询优化。
Specifies that the join order indicated by the query syntax is preserved during query optimization. 指定在查询优化过程中保持由查询语法指示的联接顺序。
The semantics information is important to the design of XML schema,query optimization and check of update abnormity. 通过该算法得到的XML函数依赖的语义信息对数据存储模式设计、查询优化和更新异常检查来说是十分重要的。
Histogram can also be used in spatio-temporal query optimization after some improvements. 通过特定的改进，直方图也可应用到时空查询优化中。
The component that does this is called the query optimizer. 处理此过程的组件称为“查询优化器”。
This makes sure that the plan guide is used by the query optimizer. 这将确保计划指南可由查询优化器使用。
Query optimizers estimate only intermediate result sizes. 查询优化器只估计中间结果的大小。
If you want to disable the usage of the constraints by the SQL compiler, you can use the DISABLE QUERY OPTIMIZATION clause. 如果您想通过编译器禁用约束,那么可以使用DISABLE QUERY OPTIMIZATION子句。
Button to validate the MDX syntax and check that any query optimization or other query processing completes successfully. 按钮可以验证MDX语法并检查任何查询优化或其他查询处理是否成功完成。
When set to ON, any missing statistics required by a query for optimization are automatically built during query optimization. 当设置为ON时,优化查询所需的任何缺少的统计信息将在查询优化过程中自动生成。
As join operation to relational database,structural join order selection is at the heart of query optimization in an XML database. 和关系数据库中的连接运算一样,结构连接顺序的选择是XML数据库查询优化的核心。
By using query optimization, database index, middle base and automatic data update technique, the DW project is very successful. 通过运用查询优化技术、数据仓库索引技术、带中间库的三层结构和数据仓库数据自动更新方案成功地建立了大连人寿保险业务数据仓库系统。
Because the object-oriented data model lacks formal basis, query optimization cannot improve the performance of OODB essentially. 由于OODB的数据模型缺乏很好的形式化基础，查询优化不能从本质上提高OODB的性能。
The indexed view is used by the query optimizer to produce the query plan. 查询优化器使用该索引视图生成查询计划。
Selectivity Estimation is the base of spatial database query optimizer. 选择性估计是设计空间数据库查询优化器的基础。
Since 1999, she has worked in many areas of federated query compilation, including query semantics, query rewrite, pushdown analysis and query optimization. 从1999开始,她从事过联邦查询编译的很多领域,包括查询语义、查询重写、下推分析和查询优化。
On this basis, it raises a query optimization model for OQL by introducing some query theories of RDB into the query process of OODB, and gives its implement strategy. 在此基础上，将RDB的一些查询理论应用于OODB的查询中，提出了一种OQL的查询优化模型，并给出其实现策略。

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