Performing queries on the object model.
在对象模型上执行查询。
System users have noticed the team's ability to identify and resolve poorly performing queries quickly.
系统用户已注意到，团队能够迅速识别并解决性能低下的查询。
Through performing various queries like this, it is possible to determine a machine's configuration and what software is installed on it.
通过执行类似这样的各种查询，可能确定一台机器的配置以及在它上面安装了什么软件。
So far, you may have noticed that while we have been performing these queries, there has not been any output produced.
到现在为止，您可能已经注意到当我们执行这些查询时，还没有产生任何输出。
On OLTP systems, where user sessions are performing quick queries, tuning this parameter can be very important.
在OLTP系统上，用户会话执行快速查询，调节此参数可能非常重要。
RDQL allows complex queries to be expressed concisely, with a query engine performing the hard work of accessing the data model.
RDQL允许简明地表达复杂的查询，查询引擎执行访问数据模型的繁重工作。
Resource utilization refers to the use of system resources such as CPU, memory and disks in performing SQL queries.
资源利用率指的是执行SQL查询时，CPU、内存和磁盘等系统资源的使用。
Instead of performing two queries, we're performing one.
我们不是执行两个查询，而是执行一个查询。
Specifically, if everything is happening in a single thread, performing long operations such as network access or database queries on the UI thread will block the whole user interface.
特别是，如果把所有的事件都放在主线程中来处理，需要长时间来处理的事件比如网络访问或者数据库查询，会阻塞整个UI。
Specifically, if everything is happening in the UI thread, performing long operations such as network access or database queries will block the whole UI.
如果UI线程需要处理每一件事情，那些耗时很长的操作——诸如访问网络或查询数据库等——将会阻塞整个UI(线程)。
PLINQ is a declarative model for performing data parallel queries against XML and in-memory objects.
PLINQ是一个对XML和内存对象进行并行查询的声明式的模型。
There are several different execute methods on QueryExecution, each performing a different type of query (see the sidebar entitled "Other types of SPARQL queries" for more information).
QueryExecution上有几种不同的执行方法，每个方法执行一种不同类型的查询(请参阅标题为“其他类型的SPARQL查询”的侧栏，以获得更多信息)。
There are many such clients performing the updates, deletes, and queries in a specific way that is meaningful to the application.
有许多这种客户机使用对应用程序很有意义的特定方法执行更新、删除和查询。
You could, however, overcome this limitation by performing multiple SimpleDB queries and doing the join on your end.
不过，您可以通过执行多个SimpleDB并在您这一端执行联接来克服此局限。
Several database utilities assist in performing tasks such as connecting to databases, browsing and editing databases, and executing SQL queries.
几个数据库实用工具在执行诸如连接数据库，浏览和编辑数据库，执行SQL查询任务中起辅助作用。
Since everything happens on a single thread performing long operations, like network access or database queries, on this thread will block the whole user interface.
一旦所有的事件都在一个线程中进行耗时的操作，比如说在这个线程上进行网络连接，数据库访问，会阻塞程序的界面响应。
Since everything happens on a single thread performing long operations, like network access or database queries, on this thread will block the whole user interface.
一旦所有的事件都在一个线程中进行耗时的操作，比如说在这个线程上进行网络连接，数据库访问，会阻塞程序的界面响应。
应用推荐