胆小懦夫
发表于 2025-3-27 00:17:04
Implicit Dependenciesthat if we need to tell what normal form some given relvar is in, we do need to know all of the dependencies, implicit ones as well as explicit ones, that hold in that relvar. In this chapter, therefore, I plan to discuss among other things:
IST
发表于 2025-3-27 01:28:48
6NFtion, it followed that 5NF was the final normal form. However, I did also say in a footnote to that chapter that there was something called . normal form or 6NF, and that’s what the present chapter is all about.
overweight
发表于 2025-3-27 05:35:03
The End Is Not Yet the last is easily the most important). But even that’s not the end of the story. In this chapter, just for completeness, I briefly describe or at least mention a few other normal forms that have been defined in the literature at one time or another.
不能和解
发表于 2025-3-27 10:15:31
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V洗浴
发表于 2025-3-27 15:44:55
ality.Provides friendly examples of theory without sacrificiCreate database designs that scale, meet business requirements, and inherently work toward keeping your data structured and usable in the face of changing business models and software systems..This book is about database design theory. Desi
不可磨灭
发表于 2025-3-27 18:14:03
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使纠缠
发表于 2025-3-27 23:13:07
Social Organizations and Governmentthese ideas in this part of the book therefore parallels the treatment of BCNF and FDs in Part II. In other words, I plan to treat the material both formally, in Chapter ., and informally in the present chapter.
Habituate
发表于 2025-3-28 06:07:10
Free Will, Benevolence and the Vision Let me just say up front that, just as Chapter . had little to say about 2NF or 3NF, so this chapter has little to say about 4NF, either; like 2NF and 3NF, in fact, 4NF is—from some points of view, at least—primarily of historical interest. However, I’ll discuss it in a little more detail in a later chapter (Chapter .).
AWL
发表于 2025-3-28 09:01:21
https://doi.org/10.1007/978-94-015-1276-3that if we need to tell what normal form some given relvar is in, we do need to know all of the dependencies, implicit ones as well as explicit ones, that hold in that relvar. In this chapter, therefore, I plan to discuss among other things:
LEVER
发表于 2025-3-28 13:13:03
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