Advanced Aspects
If you have completed the first three chapters of this book, you should feel comfortable programming in LogiQL. In this chapter, you will learn about some other aspects of the language useful for specialized purposes. The first unit illustrates the power and scope of the language by describing h...
| Main Authors: | , |
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| Format: | Book Section |
| Language: | English |
| Published: |
Taylor & Francis Group
2015
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/331/ http://eprints.intimal.edu.my/331/1/10_ft.pdf |
| Summary: | If you have completed the first three chapters of this book, you
should feel comfortable programming in LogiQL. In this chapter,
you will learn about some other aspects of the language useful for specialized
purposes. The first unit illustrates the power and scope of the
language by describing how to use LogiQL to implement some features
of imperative programming languages. Some additional constraints are
presented in the second unit. The third unit introduces an advanced
technique, called derived entities, useful in situations where your
knowledge of a particular entity comes from its properties. Although
most of the examples you have seen in this book are relatively small,
LogiQL can be used to develop industrial-scale applications. With this
in mind, Unit 4 describes some techniques you can use for structuring
large programs. The last unit presents three topics (derived-only
views, hierarchical syntax, and file predicates) that do not warrant a
unit of their own, but that can nevertheless be quite useful in certain
circumstances. Finally, the chapter ends with a consolidation exercise
giving you an opportunity to practice the skills you have learned in the
chapter. |
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