Requirement analysis and realization of production query function is introduced.
文中介绍了生产查询功能的需求分析和实现。
When the query is redundant, in that all the data needed has been captured, close the query by calling the PdhCloseQuery function.
当查询变得多余时(因为已经收集了全部所需的数据),就可以通过调用PdhCloseQuery函数来关闭查询。
It offers data transmission and query function, real-time data and history data can be displayed by the requirement of the consumer.
系统提供数据传送及查询功能,可以根据用户要求显示实时数据和历史数据。
Present three auxiliary requirements: collection function of the planning route, route evaluation function, route information query function.
提出了三项辅助功能需求:收藏规划路线功能、路线评价功能、路线信息查询功能。
The system set up has space databases to browse, query function, and the edit, figure maps renovate and decorate, output function of the query result.
建立的系统具有空间数据库浏览、查询检索功能,以及查询检索结果的编辑、数字制图整饰、输出功能。
The research focus on the approach for realizing alternant query function between spaces and property in the application developed based on GIS components.
针对组件式GIS应用系统中普遍关注的空间、属性信息交互查询功能的实现问题展开研究。
One feature that differentiates MongoDB from other document databases is that it is very straightforward to translate SQL statements into MongoDB query function calls.
MongoDB 优于其他文档数据库的一个特性是它很容易将SQL语句转换成 MongoDB查询函数调用。
Introduce a way to merge several system controls into a custom control with class designer by the example of implementing record Pointers locating and query function.
以数据记录指针的定位及查询功能的实现为例,详细介绍了使用类设计器将系统控件组合成用户定义控件的方法。
Those are not the topic of this article, of course, but the important part is that the query function returns an array of rows, each of which is itself represented as an array.
当然,这些内容并不是本文的主题。但是重要之处在于query函数,它用于返回一个行数组,其中每一行本身也表示一个数组。
The development of application software, requiring developer can actualize combination query function of database information. This is one of important indices about software assessment.
应用软件的开发,要求设计人员能够实现数据库信息的组合查询功能,这是软件评价的重要指标之一。
RDBMS is based on firm mathematics set theory with simple and clear data structure, and powerful query function, so it has become the basic technology for realization of information system.
因为RDBMS是建立在严格的数学集合论基础上的,数据结构简单、清晰,具有强大的查询能力,RDBMS成为实现信息系统的基本技术。
Function (1) executes an SQL query on the database.
函数(1)对数据库执行一个SQL查询。
Range producer function to define the search ranges for the spatial index during query execution.
用于定义在查询执行期间空间索引的搜索范围的范围生成器函数。
The query is executed with a success handler and an error handler function.
通过成功处理程序和错误处理程序函数执行查询。
Start by generating the query using the first aggregation function (SUM in the example) in the measure's list of aggregations to aggregate the template expression.
先使用度量的聚合列表中的第一个聚合函数(在这个示例中是SUM)对表达式模板进行聚合,产生一个查询。
When a query references a function template, the query optimizer tries to generate a feasible plan that allows this function reference to be evaluated on the remote data source.
当一个查询引用一个函数模板时,查询优化器尝试生成一个灵活的计划,允许在远程数据源上计算这个函数引用。
If you write the function in an application program instead of a UDF, then users of SQL query tools such as CLP will not be able to access your function.
如果是在应用程序中编写这个函数,而不是将其定义为udf,那么SQL查询工具(例如CLP)的用户将不能访问这个函数。
A way to work around this is to cast the return of the query to a VARCHAR using a cast function.
解决此问题的一种方法是使用转型函数将查询的返回数据转型为VARCHAR。
Figure 7 shows the query response times as a function of the number of documents in the table, ranging from 1,000 to 100,000 documents (when no indexes or side tables are used).
图7显示查询响应时间作为表中文档数(范围从1,000到100,000)的函数(不使用索引或索引表)。
Using dynamic SQL results in a minor performance hit, but it is much faster than running the same query using a generated ABAP function.
使用动态sql对性能有轻微影响,但是比使用生成的abap函数运行相同查询快得多。
Set a breakpoint on the new query and then start debugging to step through the function.
在新查询中设置断点,然后开始单步调试函数。
This allows an application to create a query that evaluates a database function.
这允许应用程序创建一个计算数据库的查询。
This is an example query that invokes the REC2XML function.
这个查询示例调用rec2xml函数。
A common error is to write the previous query without the square brackets in the XMLEXISTS function.
一种常见的错误是在xmlexists函数中不使用方括号来编写前面的查询。
Using a database-supported function as a query expression to extend the grammar.
使用数据库支持的函数作为查询表达式来扩展语法。
The most generic search function is through query language, such as SQL and XQuery.
最常见的搜索功能是使用SQL和XQuery之类的查询语言。
Using the BIMserver ‘advanced query’ function, CBIM models can be derived from a BIMserver model.
使用BIMserver的“高级查询”功能,可以从BIMserver模型中导出CBIM模型。
The search function takes the query information as input and returns a result set containing the search results.
search函数通过输入参数接收查询信息,返回包含搜索结果的结果集。
The following query applies the xmlrow and xmlgroup function to this row.
下面的查询在该行中应用了xmlrow和xmlgroup函数。
Note: the first line of this query invokes the XMLSerialize function, which instructs DB2 to return a serialized string version of the XML data.
注意:此查询的第一行调用XMLSerialize函数,这让DB2返回XML数据的序列化字符串版本。
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