使用XPath2来描述查询语法。
第一部分展示了查询语法。
清单9：不同的查询语法。
MQL查询语法如下。
方法语法可以通过多种方式与查询语法组合。
Method syntax can be combined with query syntax in various ways.
但是，在大多数情况下，查询语法更易读和简洁。
However, in most cases query syntax is more readable and concise.
Lucene提供了强大的查询语法，能够支持各种搜索术语。
Lucene has a powerful query syntax that can support a wide variety of search terms.
比较方法语法和查询语法这两种LINQ查询表示方法。
Compares method syntax and query syntax as two ways to express a LINQ query.
任何可以使用查询语法表示的查询也可以使用方法语法表示。
Any query that can be expressed by using query syntax can also be expressed by using method syntax.
另外，搜索引擎在查询语法上，几乎每个搜索引擎都有所不同。
Moreover, nearly each search engine has different format in the query grammar.
查询语法是Erlang的一部分，数据模型类似于对象-关系数据库管理系统。
The query syntax is part of Erlang itself, while the data model is akin to an object-relational DBMS.
在这种情况下，结构化元素会作为可搜索文本的一部分，而且只支持SQL查询语法。
In this case, the structural elements are treated as a part of the searchable body of text, and only SQL query syntax is applicable.
查询语法是面向对象的，并且没有了表、索引或其他典型的对象关系型数据库的概念。
The query syntax is object oriented and there is no concept of tables, indices, or other typical relational-database concepts. For example, the following query returns all StockBean objects in a list.
用查询语法的好处是它更易读和易写一些，显然是这样，因为表达式变得更具有表达性。
The benefit with using the query syntax approach is that it ends up being a little easier to read and write. This is especially true as the expression gets richer and more descriptive.
服务器端需要查询语法、选择操作的完整实现，以及为了数据安全而需要的访问控制和事务支持功能。
The server side requires a complete implementation of the query syntax, selection as well as access control and transaction support required to expose the data safely.
通过使用查询语法，您甚至可以使用最少的代码对数据源执行复杂的筛选、排序和分组操作。
By using query syntax, you can perform even complex filtering, ordering, and grouping operations on data sources with a minimum of code.
实际上，通过许多方式，您在这时所具有的灵活性比使用XPath查询语法可能具有的灵活性要好很多。
In fact, in many ways, the flexibility you have at this point is better than you would have had with an XPath query syntax.
Informix函数genxml使用一种稍微不同的查询语法，代码与第一个实现中使用的PHP脚本相似。
The Informix function, genxml, uses a slightly different query syntax, and returns code more similar to the PHP scripts used in the first implementation.
如果使用xml格式，那么就需要使用一个xml解析器解析和索引文档，而且SQL查询语法和类xpath语法都可用于查询。
If format XML is used, an XML parser is used to parse and index the document, and both SQL query syntax and an XPath-like syntax can be used for querying.
一旦您意识到这一点，那么优化就成为直接的考虑了：优化SQL查询然后在SQL查询与ClearQuest查询语法之间进行转换。
Once you realize this, the optimization becomes straightforward: optimize the SLQ query and then transform between the SQL query syntax and the ClearQuest query syntax.
SQL程序员有时候很难记住大小写敏感这一点，因为SQL查询语法允许使用“zip ”、“ zip ”和“ zip ”来引用同一个列名。
Case sensitivity is sometimes difficult for SQL programmers to remember, as SQL query syntax permits them to use "zip," "zip," and "zip" to refer to the same column name.
在本文中，我提供了从oracle型CONNECT BY递归查询语法到DB 2中遵从标准的使用UNION ALL的递归公共表表达式的通用映射。
In this article I provided generic mappings from the Oracle style CONNECT BY recursive query syntax to DB2's standard compliant recursive common table expressions using UNION ALL.
查询解析器(query parser)仅仅指定解码Lucene查询语法(Lucene query syntax)到相应的query对象。
The query parser just enables decoding the Lucene query syntax into the corresponding query object. Search can be executed in two different ways.
至此我已经介绍了记录递归路径和在运行时检测递归的功能，实际上还可以映射Oracle的CONNECT BY查询语法中的NOCYCLE关键字。
Now that I have introduced the capability to record the path of a recursion and to detect recursion at runtime, it is possible to map the NOCYCLE keyword of Oracle's CONNECT BY query syntax.
更复杂的情形可能需要更复杂的查询；信息中心的Interface HumanTaskManagerService文章是了解查询语法的很好的入门文章。
More complex situations might require more complex queries; a good starting point to understand the query syntax is the Interface HumanTaskManagerService article in the Information Center.
本教程提供了一系列的例子，每个例子给出了业务查询和相关的语法。
This tutorial contains a series of examples with the business query and associated syntax presented in each case.
以下就是在模型中实现提示的例子，其中时间维度查询主题通过提示语法添加了一个过滤。
One example of implementing a prompt in a model is shown below in which the time dimension query subject has a filter added with prompt syntax.
可以使用此语法自己来查询样例应用程序。
You can use this syntax to query the sample application for yourself.
然后对于属于业务流程编排组成部分的三个人员解析插件，本文将提供其人员查询XML语法的详细描述。
The article then provides a detailed description of the staff query XML syntax for the three staff resolution plug-ins that are part of Business Process Choreographer.
然后对于属于业务流程编排组成部分的三个人员解析插件，本文将提供其人员查询XML语法的详细描述。
The article then provides a detailed description of the staff query XML syntax for the three staff resolution plug-ins that are part of Business Process Choreographer.
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