LOGICAL SCHEMA Meaning and
Definition
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A logical schema is a conceptual representation of the structure and organization of data in a database system. It defines the overall blueprint for storing and managing data while abstracting away the physical implementation details.
In a database context, a logical schema outlines the logical relationships, constraints, and rules that govern the data within a database. It provides a high-level view of the database's structure, including the tables, attributes, and the relationships between them. The logical schema focuses on the logical organization and semantics of the data, rather than the specific implementation details like storage or indexing mechanisms.
A logical schema is typically represented through various data modeling techniques, such as entity-relationship (ER) diagrams or Unified Modeling Language (UML). These models serve as visual representations of the logical structure of the database, illustrating the entities, attributes, and relationships involved.
The logical schema acts as an intermediate layer between the physical schema (which defines the physical storage and implementation details) and the conceptual schema (which represents the high-level view of the entire database system). It provides a level of abstraction that allows for easier management, maintenance, and understanding of the data.
Overall, a logical schema serves as an essential component for database design by providing a conceptual framework for organizing data and ensuring its integrity and consistency.
Common Misspellings for LOGICAL SCHEMA
- kogical schema
- pogical schema
- oogical schema
- ligical schema
- lkgical schema
- llgical schema
- lpgical schema
- l0gical schema
- l9gical schema
- lofical schema
- lovical schema
- lobical schema
- lohical schema
- loyical schema
- lotical schema
- logucal schema
- logjcal schema
- logkcal schema
- logocal schema
- log9cal schema
Etymology of LOGICAL SCHEMA
The word "logical" is derived from the Greek word "logikos", meaning "reasoning". It is further derived from the Greek word "logos", referring to "word", "thought", or "speech". The term "schema" traces its roots back to the Greek word "schema", which means "form" or "shape". In the context of logic, a "schema" refers to a general pattern or structure.
When combined, the term "logical schema" refers to a systematic and reasoned organization or structure of information or ideas. It commonly denotes a framework or model for organizing data, concepts, or arguments in a logical and coherent manner.
