Learn how to tackle logical reasoning issues in your data modeling and database design, ensuring efficiency and accuracy in data engineering.
Introduction Logical Database Design vs. Physical Database Design Problem of Normalization Normal Forms
A logical data model or logical schema is a data model of a specific problem domain expressed independently of a particular database management product or storage technology (physical data model) but in terms of data structures such as relational tables and columns, object-oriented classes...
Logical Database Design ; 1 Relation Definition: A relation is a named, two-dimensional table of data – Table is made up of rows (records), and columns (attribute or field) Not all tables qualify as relations Requirements: – Every relation has a unique name. – Every attribute value is atomic (not multivalued, not composite) – Every row is unique (can’t have two rows with exactly the same values for all their fields) – Attributes (columns) in tables have unique names – The order of ...
Database Modeling and Design, Fifth Edition, focuses on techniques for database design in relational database systems. This extensively revised fifth edition features clear explanations, lots of te...
📕 목차 1. ERD → Logical Model 2. EERD → Logical Model 1. ERD → Logical Model 📌 7 단계로 진행 일반 Entity Type의 변환 Weak Entity Type의 변환 이진 1:1 관계의 변환 이진 1:N 관계의 변환 이진 M:N 관계의 변환 다중치 속성의 변환 N-ary 관계의 변환 ✒️...
Logical Database Design Conceptual Data Modeling 단계에서 분석한 사용자 요구사항을 데이터베이스 기술로 구현 가능한 형태로 변경하는 것 실제 구현하는 것은 아님 대표적인 디자인 방식으로 Relational Data Model(E.F. Codd, 1970)이 있음 Relational Data Model 구성 요소 D...
Conceptual database designLogical database designPhysical database designDatabase implementationDatabase maintenanceConceptual data modeling: er모델을 사용
Database Modeling and Design: Logical Design | Toby J. Teorey, Tom Nadeau (지은이), Morgan Kaufmann Pub, 9780123820204, 110,410원, 외국도서 > 컴퓨터 > 데이터베이스 관리 > 일반
Instance Database Schema 데이터베이스 구조, 데이터 타입, 제약조건에 대한 설명을 기술한... 일반적으로 physical data model을 사용 Conceptual(logical) Schema 전체 데이터베이스의 구조와...