Because of the higher level of abstraction it provides, SQL, unlike procedural languages, lets programmers focus on what data they need, not how to retrieve it.
由于SQL与过程化语言不同，它提供了更高的抽象级别，因此它可以让程序员把精力集中到他们需要什么样的数据，而不是如何检索数据。
Among the many query languages, Structured query language (SQL) is a language designed and optimized for querying certain kinds of relational databases.
在众多查询语言之中，结构化查询语言(SQL)是一种针对查询特定类型的关系库而设计和优化的语言。
Like arrays in other programming languages, DB2 arrays can be used as an auxiliary data structure when coding algorithms in SQL PL.
像其他编程语言中的阵列一样，在SQLPL中对算法编码，DB 2阵列可用作辅助数据结构。
Object query languages still do not relieve you from having to know SQL, since you often need to know how to fine tune query languages.
对象查询语言仍不能免除必须了解SQL，这是因为通常需要了解如何调优查询语言。
If you know SQL, XSLT is easier to learn because both are declarative languages.
如果您了解SQL，那么XSLT就更容易学习，因为这两种语言都是声明性语言。
The tutorial ends with a section on mixing XQuery and SQL and combining the power of the two languages.
本教程的最后一节介绍如何混合使用XQuery与SQL，将这两种语言的威力组合起来。
Although DB2 supports both SQL and XQuery as top-level languages, XQuery doesn't provide a means to resolve parameter markers.
尽管DB 2同时支持SQL和XQuery作为顶层语言，但是XQuery不提供解析参数标志符的手段。
XQuery differs from SQL in a number of key respects, largely because the languages were designed to work with different data models that have different characteristics.
XQuery在很多关键方面都与SQL有所不同，这很大程度上是因为这两种语言是针对两种具有不同特征的数据模型而设计的。
Greg Wilson shows readers how to use high-level tools, such as scripting languages and SQL, to perform common tasks that we must perform repeatedly — and efficiently.
GregWilson告诉读者如何使用高级工具，如脚本语言和SQL，来有效地执行我们必须重复的一般工作。
Common examples of declarative programming include spreadsheets, SQL, XSLT, and programming languages such as Haskell.
声明性编程的常见例子包括电子表格、SQL、XSLT和诸如Haskell这样的编程语言。
Different languages call these different things, such as "bound" or "placeholder" or "prepared" or "parameterized" SQL statements.
不同的语言调用不同的内容，例如“bound ”或“placeholder ”或“prepared ”或“parameterized ”sql语句。
Now DB2 can query this data using SQL/XML and XQuery languages by using the nicknames created for the view.
现在DB2可以使用SQL/XML和XQuery语言通过为视图创建的别名来查询数据。
DB2 9.7 introduces the statement concentrator feature that improves the performance of programs that use dynamic SQL, and are developed in languages such as Ruby and PHP.
DB 2 9.7引入了语句集中器特性，提高了使用动态sql以及Ruby和php语言开发的程序的性能。
Indeed, applications can freely employ statements from both query languages, and a single query statement can actually incorporate both SQL and XQuery.
实际上，应用程序可以自由地使用这两种语言的语句，而且一个查询语句可以结合使用SQL和XQuery。
While some DSLs like SQL are self-contained, it’s become popular to implement DSLs as subsets of full-fledged programming languages.
有些DSL像SQL 一样是自我包含的，而今使用成熟语言来实现DSL 使之成为母语言的一个子集变得流行起来。
We then look toward the end of the semester at these languages that you've might have heard of now, the acronyms therefore like HTML and HTTP, PHP and SQL and the like.
然后，在学期末时，我们会学习HTML,HTTP,PHP和SQL等，这些东西你现在可能就听说过。
Languages like Prolog, Mercury, SQL, XSLT, EBNF grammars, and indeed configuration files of various formats, all declare that something is the case, or that certain constraints apply.
诸如prolog、Mercury、SQL、XSLT这样的语言、ebnf语法和各种格式的真正配置文件，都声明某事是这种情况，或者应用了某些约束。
Text files do not support SQL Query languages.
文本文件不支持SQL查询语言。
The basic optimization methods of the SQL query language is presented by comprehending executive tactics of RDBMS optimizer and analyzing the factors that affect the SQL query languages efficiency.
介绍RDBMS优化器的执行策略和分析了影响SQL查询效率的因素的基础上，提出了优化SQL查询效率的基本方法，以提高数据库查询的执行效率。
The basic optimization methods of the SQL query language is presented by comprehending executive tactics of RDBMS optimizer and analyzing the factors that affect the SQL query languages efficiency.
介绍RDBMS优化器的执行策略和分析了影响SQL查询效率的因素的基础上，提出了优化SQL查询效率的基本方法，以提高数据库查询的执行效率。
应用推荐