
Relational Schema - an overview | ScienceDirect Topics
A relational schema is defined as a set of relational tables and associated items that are interrelated, encompassing base tables, views, indexes, domains, user roles, and stored modules created to …
Relation Schema - an overview | ScienceDirect Topics
For example, a very simple relational database storing nucleotide sequences might draw on the primitive data type string to specify all its domains. Two relation names might be DNA-sequence and …
Conceptual Schema - an overview | ScienceDirect Topics
For example, in a relational schema, facts are stored in tables, and constraints are expressed using primary and foreign key declarations and so on. The logical schema may now be realized as a …
Relational Schema - an overview | ScienceDirect Topics
Relational schemas are cognitive structures that represent patterns based on past interpersonal interactions, encompassing representations of self and others, as well as an interpersonal script that …
Logical Schema - an overview | ScienceDirect Topics
Logical schema design involves mapping a high-level conceptual schema, such as those created using entity-relationship (ER), Object Role Modeling (ORM), or Unified Modeling Language (UML) …
Relational Table - an overview | ScienceDirect Topics
A relational schema (or relational database schema) is a set of relational table definitions, constraints, and possibly derivation rules. The structure of a single relational table is called a table scheme or …
Normalized Schema - an overview | ScienceDirect Topics
The normalized schema is the oldest of the four. The first articles written on normalized schemas were published at the beginning of the 1970s (see, for example, [29] and [30]). In normalization, columns …
Ternary Relationship - an overview | ScienceDirect Topics
3. Role in Database Design and Transformation to Relational Schemas Ternary relationships arise naturally in database schema design when the association among three entities cannot be …
Object-Relational Database - an overview | ScienceDirect Topics
An object-relational database is defined as a type of database that combines features of relational database management systems with object-oriented programming, allowing for the storage of …
Enhanced ER to relational mapping and interrelational normalization
Dec 1, 2000 · In order to propose a method for logical relational database design, we have taken into account such anomalies, especially redundancies detected by the new normal forms, and formalized …