'Lossless decomposition' diaporamas de présentation

Lossless Decomposition (2)

745 views • 63 slides

Normalization

Normalization. Good database design ensures: that the data that we want to store is consistent . and can be retrieved or updated in the most efficient manner. Database design deals with fitting of a given piece of data into an appropriate logical organization .

863 views • 55 slides

Functional Dependencies and Normalization

Functional Dependencies and Normalization. Instructor: Mohamed Eltabakh meltabakh@cs.wpi.edu. What to Cover. Functional Dependencies (FDs) Closure of Functional Dependencies Lossy & Lossless Decomposition Normalization. sNumber. sName. pNumber. pName. s1. Dave. p1. MM. s2. Greg.

541 views • 52 slides

Lossless Decomposition

586 views • 27 slides

Lossless Decomposition

294 views • 27 slides

Functional Dependencies and Normalization

358 views • 25 slides

Decomposition

466 views • 23 slides

Decomposition

236 views • 23 slides

Lossless Decomposition

1.02k views • 20 slides

Decomposition

Decomposition. By Timothy Chen CS157A. Goal to Decomposition. Eliminate redundancy by decomposing a relation into several relations in a higher normal form. Example we saw can be eliminated by decomposing the relation schema Movies(title, year, length, filmType, studioName, starName)

435 views • 19 slides