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Explain the differences between physical level,conceptual level and view level of data abstraction.

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By Dipali Umre

AspectPhysical LevelConceptual LevelView Level
1. Abstraction LevelLowestMiddleHighest
2. FocusHow data is storedWhat data is storedUser interaction with data
3. DescriptionActual storage detailsStructure of the whole databaseUser-specific information
4. DetailsComplex low-level data structuresHides physical storage structure detailsHides unnecessary details
5. User AwarenessNot aware of complexityNot aware of complexityAware of complexity
6. User PerspectiveUnconcerned about database complexityUnconcerned about database complexityAware of database complexity
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