处理关系数据库：结构化查询语言。
关系数据库使用结构化查询语言(Structured Query Language,SQL)以便从多个表和列中提取信息，但是键值存储仅限于对键列的操作。
Relational databases use Structured Query Language (SQL) to pull information from multiple tables and columns, but key-value stores are limited to operations on the key column.
最重要的是，和关系数据库以及结构化查询语言(SQL)相比，使用原生xml数据库和XQuery将更容易解决众多问题。
Most important, many problems are much easier to solve with a native XML database and XQuery than with a relational database and Structured Query Language (SQL).
结构化查询语言(Structured Query Language,SQL)：一种标准化语言，用于在关系数据库中定义对象及操纵数据。
Structured Query language (SQL) : a standardized language used to define objects and manipulate data in a relational database.
结构化查询语言。一种用于查询和修改关系数据库的标准语言。
Structured query language. A standard language for querying and modifying relational databases.
一个例子是结构化查询语言，它是大多数关系数据库查询系统的基干形式。
An example is the language SQL (Structured query language), which forms the backbone of most relational database query system.
传统的关系数据库查询语言SQL是针对平面的二维关系数据而设计的，并不适合XML/GML半结构化数据的查询；
Traditional relational database query language SQL is designed for relational tables, and not suitable for XML or GML semistructured data;
SQL是一种结构化的查询语言，已成为关系数据库的国际标准语言。
SQL, which is a structured query language, has been an international standard language of relational database. This paper shows the corresponding relations between algebra of relations and SQL.
所有的商业关系数据库都建立在标准SQL(结构化查询语言)作为它们支持的包容性语言。
All commercial relational databases use forms of the standard SQL (Structured Query language) as their supported comprehensive language.
所有的商业关系数据库都建立在标准SQL(结构化查询语言)作为它们支持的包容性语言。
All commercial relational databases use forms of the standard SQL (Structured Query language) as their supported comprehensive language.
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