'Relation schemes' presentation slideshows

Schema Refinement, Normalization, and Tuning

Schema Refinement, Normalization, and Tuning. Design Steps. The design steps: 1. Real-World 2. ER model 3. Relational Schema 4. Better relational Schema 5. Relational DBMS

653 views • 49 slides

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???????? 4. ? ?????? SQL ??? ????????? ????????. Relational Calculus: Introduction. The Relational Calculus (RC) is a non-procedural, formal language based on first-order predicate calculus

629 views • 43 slides

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Chapter 19. Instructor: Mirsad Hadzikadic. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

504 views • 42 slides

CSC 405 Introduction to Computer Security

CSC 405 Introduction to Computer Security. Topic 6. Database Security. Agenda. Discretionary access control in DBMS Mandatory access control and multi-level databases Database inference control. Topic 6.1 DAC in DBMS. Outline . Relational model Grant and revoke

697 views • 41 slides

Database Design

500 views • 36 slides

Database Design

490 views • 36 slides

Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

352 views • 25 slides

Database Design

268 views • 15 slides

Database Design

241 views • 15 slides