
Fourth-generation programming language - Wikipedia
A fourth-generation programming language (4GL) is a high-level computer programming language that belongs to a class of languages envisioned as an advancement upon third-generation programming languages (3GL).
What is Fourth Generation Programming Language?
2024年10月4日 · What is Fourth Generation Programming Language? A Fourth Generation (Programming) Language (4GL) is a grouping of programming languages that attempt to get closer than 3GLs to human language, a form of thinking, and conceptualization and are easier to …
4GL - 百度百科
第四代语言(4GL)是一个简洁的、高效的非过程编程语言,用来提高DBMS的效率。 在第四代语言中,用户定义“做什么”而不是“如何做”。 第四代语言依靠更高级的第四代工具,用户可以使用这个工具定义参数来生成应用程序。 第四代语言内嵌了如下组件: 查询语言。 报表生成器。 电子数据表。 数据库语言。 应用程序生成器,用来定义插入、检索、更新数据等操作来生成应用程序。 生成应用程序的高级语言。 结构化查询语言(SQL)和通过例子查询(QBE)是第四代语言 …
第四代语言 - 百度百科
4GL以 数据库管理系统 所提供的功能为核心,进一步构造了开发高层 软件系统 的开发环境,如 报表 生成、多窗口 表格 设计、菜单生成系统、图形图象处理系统和决策支持系统,为用户提供了一个良好的应用开发环境。 它提供了功能强大的非过程化问题定义手段,用户只需告知系统做什么,而无需说明怎么做,因此可大大提高软件生产率。 进入90年代,随着计算机软硬件技术的发展和应用水平的提高,大量基于 数据库管理系统 的4GL商品化软件已在计算机应用开发领域中获 …
第四代程式語言 - 维基百科,自由的百科全书
第四代程式語言 (fourth-generation programming language)簡稱 4GL,是指在 程式語言世代 分類中,在 第三代编程语言 (3GL)之上的 电子计算机 编程语言。 例如 Clipper 、 SQL 、 SAS 、 MATLAB 都是第四代程式語言。 每一世代的程式語言都希望程式的抽象程度越高,越不用處理和電腦 硬件 內部相關的細節,讓程式對 程序员 更友好,更強大,也更通用。 第四代程式語言的定義隨著時代而改變,不過其特點是可以處理大量資訊的集合,而不是只專注於 位元 及 字节。
Fourth-generation language (4GL) | Definition & Facts | Britannica
Fourth-generation language (4GL), computer programming language that is intended to be easier for users than machine languages (first-generation), assembly languages (second-generation), and the older high-level languages (third-generation). 4GLs are …
Fourth-generation languages. Volume I: principles: | Guide books
The first four chapters give an overview of 4GLs: the meaning of the term “fourth-generation language”; categories of 4GLs; uses of 4GLs; and the impact of 4GLs on application development productivity. Many of the classifications and distinctions introduced in these early chapters are cogent and useful.
What is Fourth Generation Language (4GL) - Learning Mania
2024年2月9日 · Fourth generation language is a non-procedural language which means that the programmer defines what has to be done (i.e., what output should be produced) instead of how the task is to be completed. It means that you do not need to follow a rigorous command syntax to use them. It is also known as a very high-level language.
What is 4GL Fourth-generation language? | Tutorials Link
2021年8月6日 · 4 generation language is popularly known for non - procedural language now third-generation language and fourth-generation language features are added for the general-purpose ability environment.
What is Fourth-generation language? - Definition from Amazing …
Fourth-generation languages (4GLs) are high-level programming languages designed to make programming more efficient and easier to learn, typically using natural language-like syntax and automating complex processes.
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