For example, some business requirements are generated by analyzing existing report query workflows and interpreting current business data analytic structures.
例如，某些业务需求是通过分析现有报表查询工作流和解释当前业务数据分析结构而生成的。
When you use query over collection, your query can be executed against existing result sets without the need to re-evaluate the query in the database and re-fetch all the data into your application.
当在集合上使用查询时，可直接在已有的结果集上执行查询，而不必重新在数据库中执行查询，然后重新将所有数据取出到应用程序中。
Lastly, the functions that query the existing records and populate the HTML page with the data are called.
最后，调用查询现有记录和用数据更新html页面的函数。
A query to this database could determine what source modules and data files must change if an existing data element is altered or a new data element is added.
如果现有数据元素发生了变化或添加了新数据元素，可通过查询此数据库来确定必须更改哪些源模块和数据文件。
If you aren't familiar with either type of query, see the topic Create a select or crosstab query (MDB) or update existing data with an update query.
如果您对任何一种查询类型不熟悉，请参见主题创建选择或交叉表查询(MDB)或用更新查询更新现有数据。
Aggregation query over high rate data streams: basically, most existing aggregation algorithms adopt the approximation technology to obtain the advancement of rate by sacrificing the accuracy.
高速数据流聚集查询：目前已有的聚集算法绝大多数是采用近似技术，以牺牲精度来换取速度的提高。
The emphasized text shows the existing query used as the source of the new query's data.
加粗的文本表示用作新查询的数据源的现有查询。
All the existing query processing algorithms on data streams are based on the immediately execution manner.
目前，基于滑动窗口的查询操作算法都是适用于立即执行的连续查询。
Compared with existing methods, the new method spends less time on data partitioning, and obtains less distributed transactions and faster speed on query for partitioning databases.
与现有方法相比，该方法减少了分区响应时间，保证了较少的分布式事务数量，并提高了分区事务查询速度。
To write this new query, you can use the existing query as the source of the new query's data.
若要编写此新查询，您可以使用现有查询做为新查询的资料来源。
To write this new query, you can use the existing query as the source of the new query's data.
若要编写此新查询，您可以使用现有查询做为新查询的资料来源。
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