'Bc yields' presentation slideshows

Databases 2

Databases 2. Storage optimization : functional dependencies , normal forms , data ware houses. Functional Dependencies. X -> A is an assertion about a relation R that whenever two tuples of R agree on all the attributes of X , then they must also agree on the attribute A .

1.24k views • 110 slides

Design Theory for Relational Databases (cf. Chapter 3)

Design Theory for Relational Databases (cf. Chapter 3). Functional Dependencies Decompositions Normal Forms. acknowledgment: slides by Jeff Ullman @ Stanford. Functional Dependencies.

740 views • 65 slides

Design Theory for Relational Databases (cf. Chapter 3)

Design Theory for Relational Databases (cf. Chapter 3). Functional Dependencies Decompositions Normal Forms. acknowledgment: slides by Jeff Ullman @ Stanford. Functional Dependencies.

652 views • 65 slides

Design Theory for Relational Databases

Design Theory for Relational Databases. Functional Dependencies Decompositions Normal Forms. Functional Dependencies. X -> Y is an assertion about a relation R that whenever two tuples of R agree on all the attributes of X , then they must also agree on all attributes in set Y .

520 views • 51 slides

The Relational Data Model

526 views • 44 slides

Design Theory for Relational Databases

583 views • 42 slides

Databases 1

431 views • 33 slides

Lecture 7

CS4416 Database Systems CS5122 Development of IS 2. Lecture 7. Design Theory for Relational Databases (part 1). Slides based on http://infolab.stanford.edu/~ullman/fcdb/aut07/index.html#lecture. Relational Schema Design.

462 views • 30 slides

Design of Relational Database Schemas

Design of Relational Database Schemas. The principal problem that we encounter is redundancy , where a fact is repeated in more than one tuple. Most common cause : attempts to group into one relation both single valued and multi-valued properties of an object.

245 views • 15 slides