But what about complex queries?
但是对于复杂的查询呢？
There is no complex scheme required to join tables or execute complex queries.
联合表或执行复杂查询都不需要任何复杂方案。
The filters in the on clause can contain complex queries or simple expressions.
on 子句中的过滤器能够包含复杂查询或者简单表达式。
A drawback is that you cannot have complex queries defined in your finder methods.
缺点是您不能使用在finder方法中定义的复杂查询。
By using more and more complex queries, an attacker can change, add, or look up data.
通过利用越来越复杂的查询，黑客可以变更、添加，或查询数据。
This paper proposes a combined object algebra to support complex queries in GIS.
本文提出一种合并的对象代数以支持地理信息系统中的复杂查询。
Complex queries over moderately large collections give you enough time to brew a cup of coffee.
在比较大的集合上进行复杂的查询让您有时间去煮一杯咖啡。
Having fined-grained database tables means more table joins and accordingly more complex queries.
细粒度的数据表意味着更多数据表连接，相应的查询也会更复杂。
In this section, I'll introduce more of SPARQL's features, and the more complex queries they enable.
在这一节中，我将介绍更多SPARQL的特性，以及它们支持的更复杂的查询。
This is especially important for large or complex queries, not only the most frequently used queries.
对于经常使用的查询以及大型或复杂的查询，这一点尤其重要。
To perform more complex queries against the database, you must define filters against the metadata.
要对数据库执行更复杂的查询，必须定义元数据过滤器。
This condition generally applies to complex queries executed by applications used for reporting purposes.
通常，这种情况适用于用于报告目的的应用程序执行的复杂查询。
Instead of building complex queries, I can use the model to traverse relationships in Ruby instead of SQL.
与构建复杂查询不同，我使用模型在Ruby(而非SQL)中遍历关系。
This time, we'll extend this approach by allowing the user to specify more complex queries (such as JOINs).
这次，我们将扩展该方法，以允许用户指定更加复杂的查询(例如join)。
Materialized query tables can significantly improve the performance of queries, especially complex queries.
物化查询表可以显著提高查询的性能，尤其是提高复杂查询的性能。
This approach requires some additional application changes and modification to code and complex queries.
这种方法要求对应用程序进行一些额外的更改，对代码和复杂的查询进行一些修改。
Conversely, TPC-H is a data warehousing benchmark that requires the ability to perform complex queries efficiently.
相反，TPC - H是一种数据仓库基准，它要求能够有效地执行复杂查询。
For highly complex queries, plain SQL over shredded data may be easier to write and can provide better performance.
对于复杂度较高的查询，被分解的数据上的纯s QL查询可能更易于编写，并且能提供较好性能。
So, for more complex queries-particularly where the output will be parsed by a script-dig is preferred (see Listing 13).
因此，对于复杂的查询，尤其是输出将由脚本解析的查询，最好使用dig(见清单13)。
You can also perform more complex queries. For example, you could query for all entries whose contents contain the word rose.
也可以执行更复杂的查询。
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。
In addition, DB2 provides advanced SQL features to help handle complex queries, including geospatial data and complex computations.
此外，DB 2提供了先进的SQL功能来帮助处理复杂的查询，包括地理空间数据和复杂计算。
For complex queries taking more than few seconds to execute, synchronous execution may affect the overall application's performance.
对于需要花费不止几秒来执行的复杂查询，异步执行可能会影响整个应用程序的性能。
The JPA query language contains much functionality for more complex queries. Queries can be passed in dynamically to the entity manager.
JPA查询语言包含许多用于更复杂查询的功能。
Complex queries are serviced by a combination of direct lookups, convergences against selected parent nodes, and targeted substring searches.
复杂查询是通过组合直接查找和对所选父节点的汇聚及目标子串搜索来完成的。
Elapsed time reductions of 40% have been measured for complex queries with multiple sources, and potentially greater reductions are possible.
据检测，对于涉及多个数据源的复杂查询，使用异步可以令其执行时间节省40%甚至更多。
If you need to perform highly complex queries and very heavy analytical processing, plain SQL over shredded data can provide better performance.
如果需要执行高度复杂的查询和非常多的分析处理，在分解的数据上执行纯s QL可以提供更好的性能。
Regular-expression support is minimal at best and can often be unrecognized or unprocessable for complex queries that regular grep can handle easily.
正则表达式支持有可能并且通常会无法识别或不能处理复杂查询，而正则grep 却可以轻松处理。
SQL database affords options for transactional commits, complex queries and relational support which aren't provided of course of ehCache by itself.
一个SQL数据库提供了选择的事务提交，不提供支持的过程本身复杂的查询和关系的例子。
A SQL database affords options for transactional commits, complex queries and relational support which aren't provided of course of ehCache by itself.
一个SQL数据库提供了选择的事务提交，不提供支持的过程本身复杂的查询和关系的例子。
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