Database Design and Relational Theory: Normal Forms and All That Jazz

© C. J. Date 2019

C. J. DateDatabase Design and Relational Theoryhttps://doi.org/10.1007/978-1-4842-5540-7_10

10. JDs and 5NF (Formal)

C. J. Date¹ 

(1)

Healdsburg, California, USA

 

After great pain, a formal feeling comes.

—Emily Dickinson:

Poem No. 341 (c. 1862):

Thomas H. Johnson (ed.):

The Complete Poems of Emily Dickinson (1960)

Just as Chapter 5 consisted of a more formal treatment of material introduced informally in Chapter 4, so this chapter consists of a more formal treatment of material introduced informally in Chapter 9. But there’s rather more to cover in this chapter than there was in Chapter 5, as you’ll soon see. Let me just say up front that, just as Chapter 5 had little to say about 2NF or 3NF, so this chapter has little to say about ...