NT1 is a conformance test system based on the knowledge base for the relational database SQL language standard.

NT 1是基于知积库的关系数据库sql标准一致性测试系统。

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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(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。

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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).

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。

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Traditional relational database query language SQL is designed for relational tables, and not suitable for XML or GML semistructured data;

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；

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An example is the language SQL (Structured query language), which forms the backbone of most relational database query system.

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。

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At present, it has lots of shortcomings that relational database management system stores persistence object and is visited by JDBC and SQL language.

目前关系数据库管理系统存储永久性对象并由JDBC和SQL语言访问永久性对象的方法有许多缺点。

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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.

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。

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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.

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。

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