它提供一个功能丰富的环境，包括表单和报告语言，可以轻松地开发关系数据库应用程序。
It provides a rich environment with forms and reports language for easy development of relational database applications.
关系数据库模型和SQL语言的使用必须考虑到企业级性能和可伸缩性。
The relational data model and use of the SQL language allows for enterprise level performance and scalability.
关系数据库不同于编程语言，它们不具有数组类型。
Relational databases aren't like programming languages. They don't have array types.
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.
当关系数据库刚开发出来的时候，情况就是这样。但是，幸运的是，许多开发商同意开发一个标准的语言，用来访问和操纵数据库。
When relational databases were first developed, this was the case; but, fortunately, a number of vendors agreed to develop a standard language for accessing and manipulating relational databases.
关系数据库的核心是以记录表示数据，记录存放在数据库表，数据库使用查询语言(SQL)对数据进行搜索与查询，同时，数据库对各个数据表进行关联。
The database offers a way to search the records using a query language, nowadays SQL. The database offers a way to correlate information from multiple tables.
由于所有这些原因，在尝试使用关系数据库来持久化诸如python等动态语言中的对象时，关系数据库导致了显著的不匹配。
For all of these reasons, relational databases offer what we might call a noticeable impedance mismatch when we try to use them to persist objects in a dynamic language like Python.
正如采用静态类型化的语言进行编程的朋友们一样，Python和其他动态语言的程序员通常使用关系数据库作为后端数据存储区。
Just like their friends who program in statically typed languages, programmers of Python and in other dynamic languages often use relational databases as a back-end data store.
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.
由于Web应用程序的后台数据库通常都是关系数据库，因此这些CRUD操作都是使用众所周知的SQL语言执行的。
As databases behind Web applications are typically relational databases, these CRUD operations are done using the well-known language, SQL.
SQL语言是用户和应用程序与关系数据库的标准接口。
SQL is the standar user and application program interface to a relational database.
采用对象关系数据库、中间件技术、TSQL2语言设计了时空处理中间件。
By using of middleware, TSQL2 language and Object-Relational database, we develop a spatiotemporal middleware.
本文提出一种适用于管理信息系统中关系数据库查询的自然语言接口模型。
In this paper, an interface model of the natural language is proposed, which is suitable to the query of relational database on MIS.
研究CLIPS与高级语言的相互嵌入。 并且用关系数据库建造了CLIPS事实库。
Study the inter-embed technology between the CLIPS and the advanced language, using database to design CLIPS's knowledge base.
本文阐述如何使用统一建模语言动态建模方法为关系数据库的查询操作建模。
This paper describes how to model select operation for relational database using UML dynamic modeling.
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。
At present, it has lots of shortcomings that relational database management system stores persistence object and is visited by JDBC and SQL language.
这些扩展使得结构性API构造具有与其他领域（如关系数据库和XML）中查询语言同等的表达能力。
The extensions enable construction of compositional APIs that have equal expressive power of query languages in domains such as relational databases and XML.
关系代数的派生算子在关系数据库查询语言中得到了广泛应用。
The derived relational algebra operators are widely used in the relational database query languages.
给出了中介关系数据模型，在此基础上构造了两类不同的中介关系数据库查询语言：中介关系演算和中介关系代数。
Based on this model, this paper constructs two different kinds of medium relational database query languages: medium relational calculus and medium relational algebra.
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.
而关系数据库标准查询语言SQL没有除法运算符，不能直接作除法。
However, there are no division symbol in SQL, so the division can not be operated directly.
在对数据库的操作中，采用数据库描述语言SQL实现对关系数据库的访问，应用程序通过调用ODBC函数，向数据库提交SQL请求，避开了对数据库的直接操作。
In this system, SQL is used to realize the access to Database, the application program use ODBC function, give a SQL request to Database will avoid the direct access to Database.
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;
这种程序设计语言不仅可用在关系数据库系统中还可用在演绎数据库中。
This programming language can be used not only for RDBMS but also for DDES.
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.
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.
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