Categories of Data Model – Conceptual Data Model & Physical Data Model
Many data models have been proposed, which we can categorize according to the types of concepts they use to describe the database structure. High level or Conceptual data models provide concepts that are close to the waymany users percieve data, whereas Low level or Physical Data model provide concept that describe the details of how data is storedin the computer. Concepts provided by low level data models are generally meant for computer specialities, not for typical end photos.
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