Database Design: Know It All - download pdf or read online

By Toby J. Teorey

ISBN-10: 0123746302

ISBN-13: 9780123746306

This publication brings the entire parts of database layout jointly in one quantity, saving the reader the time and fee of constructing a number of purchases. It consolidates either introductory and complicated themes, thereby masking the gamut of database layout technique ? from ER and UML innovations, to conceptual info modeling and desk transformation, to storing XML and querying relocating items databases.

The proposed publication expertly combines the best database layout fabric from the Morgan Kaufmann portfolio. person chapters are derived from a pick out crew of MK books authored via the simplest and brightest within the box. those chapters are mixed into one finished quantity in a fashion that enables it for use as a reference paintings for these drawn to new and constructing facets of database layout.

This e-book represents a brief and effective method to unite useful content material from major database layout specialists, thereby making a definitive, one-stop-shopping chance for patrons to obtain the knowledge they'd in a different way have to around up from separate sources.

  • Chapters contributed by way of a number of well-known specialists within the box allow the reader stay brand new and entirely expert from a number of viewpoints.
  • Details a number of relational versions and modeling languages, bettering the reader’s technical services and familiarity with design-related specifications specification.
  • Coverage of either conception and perform brings the entire parts of database layout jointly in one quantity, saving the reader the time and rate of creating a number of purchases.

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Extra info for Database Design: Know It All

Sample text

We deal more with this in the next section, after we have had an opportunity to consider some of the properties of relationships. 5(a) and (b) lists the concepts introduced up to now. 2 FURTHER DETAILS OF ER MODELING Now that we’ve defined some fundamental means of classification, let’s discuss properties of relationships in the ER method of database design. 2) 21 (a) Classification Description Relationship Named set of m-tuples, identifies subset of the Cartesian product E1 × E2 × . . 5 Basic ER concepts: (a) entities and attributes, and (b) relationships.

Note that the primary identifier of an entity might be a composite attribute, which therefore translates to a set of attributes in the relational table mapping. Entity occurrences are mapped to the table’s rows. 2. The primary key is underlined. students sid lname fname Midinitial 1134 Smith John L. ... ... employees eid staddress city state zipcode 197 7 Beacon St Boston MA 02122 ... ... ... 1 Introduction to ER Concepts 17 Transformation Rule 2. Given an entity E with primary identifier p, a multivalued attributed attached to E in an ER diagram is mapped to a table of its own; the table is named after the plural multivalued attribute.

We don’t try to differentiate numbers other than 0, 1, and many. Since max-card(E, R) = N, there are multiple entity instances of F connected to one of E by the relationship. For this reason, F is called the “many” side and E is called the “one” side in this many-to-one relationship. Note particularly that the “many” side in a many-to-one relationship is the side that has max-card value 1! 6(b), the entity F corresponds to the “many” side of the many-to-one relationship, even though it has min-card(F, R) = max-card(F, R) = 1.

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Database Design: Know It All by Toby J. Teorey


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