PHYSICAL SCHEMA Meaning and
Definition
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Physical schema refers to the structural representation or arrangement of physical components within a system, typically in the context of databases or computer systems. It relates to the way data and objects are organized, stored, and accessed in a physical storage medium, such as a file system or a database.
In the context of databases, a physical schema defines how tables and data are physically stored on secondary storage devices like hard drives. It encompasses various aspects, such as the file organization techniques, indexing structures, data partitioning, and various optimization strategies employed to enhance the performance and efficiency of data retrieval and storage operations.
The physical schema is designed based on considerations like data access patterns, storage constraints, system architecture, hardware specifications, and the anticipated workload. It determines the physical representation of tables, including how data is distributed across storage devices or servers, the allocation of disk space, and the organization of indexes to facilitate efficient retrieval.
The physical schema is distinct from the logical schema, which defines the logical structure and relationships between the data elements or entities in a database. While the logical schema focuses on the design and organization of data conceptually, the physical schema translates the logical schema into a format suitable for efficient storage and retrieval on physical devices.
Overall, the physical schema plays a crucial role in defining the implementation details and optimizing the performance of a database system or computer system by efficiently managing data storage and retrieval.
Common Misspellings for PHYSICAL SCHEMA
- ohysical schema
- lhysical schema
- 0hysical schema
- pgysical schema
- pbysical schema
- pnysical schema
- pjysical schema
- puysical schema
- pyysical schema
- phtsical schema
- phgsical schema
- phhsical schema
- phusical schema
- ph7sical schema
- ph6sical schema
- phyaical schema
- phyzical schema
- phyxical schema
- phydical schema
- phyeical schema
Etymology of PHYSICAL SCHEMA
The word "physical" is derived from the Latin word "physicus" which means "natural, pertaining to nature". It is related to the Greek word "physikos" meaning "relating to nature or the natural world".
The word "schema" has its roots in Greek as well. It comes from the Greek word "skhēma" which means "figure, shape, or form". In psychology, a schema refers to an organized pattern of thought or behavior.
Therefore, the term "physical schema" combines the Latin word "physical" referring to the natural world and the Greek word "schema" indicating a pattern or form. In the context of psychology or cognitive science, a physical schema pertains to a cognitive framework or mental representation of the physical aspects, structure, or organization of objects, spaces, or relationships in the real world.
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