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How are the internal external and conceptual schemas related to concept of logical and physical data independence?
The internal schema represents the physical storage structure of data, the external schema represents how different users view the data, and the conceptual schema defines the logical structure of the entire database. Logical data independence means that the conceptual schema can change without affecting the external schemas, while physical data independence means that changes in the physical storage structures do not affect the conceptual or external schemas.
What is the conceptual idea behind the meaning of this keyword?
The conceptual idea behind the meaning of a keyword is the central theme or concept that the keyword represents in a particular context or subject.
What is the concept of abstract time and how does it relate to our perception of reality?
Abstract time refers to the idea that time is a human construct rather than a tangible, physical entity. It is a way for us to organize and understand the sequence of events in our lives. Our perception of reality is influenced by our understanding of time, as it shapes how we experience and interpret the world around us. Time helps us make sense of cause and effect, memory, and the passage of events, ultimately shaping our perception of reality.
What is the difference between color and race?
Color refers to the physical appearance of a person's skin, hair, and eyes, while race is a social construct that categorizes people based on shared characteristics such as ancestry, culture, and history. Color is a visible trait, while race is a broader concept that includes factors beyond physical appearance.
How do you construct sentence on word purview?
Sentence: Within the purview of our department's responsibilities, we are tasked with overseeing all financial transactions and budget allocations.
Is a computer a physical system or a conceptual system or both?
A computer is a physical system which works on conceptual basics. so you can say it's both.
What types of models are there?
physical mathematical conceptual
What is the antonym for physical?
The antonym for physical is conceptual.
What is the difference between a physical model and a conceptual model?
conceptual model :A conceptual model uses idea to suggest what system is or how it works.A physical model : A physical model might be a scale model , either larger or smaller than the actual system it represents.
What is the difference between conceptual design and physical design?
Conceptual designs attempts to identify the highest level of relationships between entities. Conceptual designs include only important entities. Physical design helps in converting the logical design into the physical form.
Is the VSEPR mode a physical model a conceptual model?
VSEPR is a conceptual model, as it has not been directly observed.
Is the globe mathermical physical or conceptual model?
im not sure
What is Physical Education according to Andin?
what i s the conceptual definition of IV "mother's education"? what is the conceptual definition of DV "effect on child"?
What are types of a model?
3 types of a model are-Physical-Mathematical-Conceptual
How are the internal external and conceptual schemas related to concept of logical and physical data independence?
The internal schema represents the physical storage structure of data, the external schema represents how different users view the data, and the conceptual schema defines the logical structure of the entire database. Logical data independence means that the conceptual schema can change without affecting the external schemas, while physical data independence means that changes in the physical storage structures do not affect the conceptual or external schemas.
Physical device are used to construct physical memory?
Physical devices are used for storing physical devices
What is a conceptual variable?
Conceptual variables are variables that are used as the basis of a hypothesis in experiments. Conceptual variables are abstract, as opposed to the concretely defined variables used in the experiment.
