Database Enviroment

yuroshyini1719
Mind Map by yuroshyini1719, updated more than 1 year ago
yuroshyini1719
Created by yuroshyini1719 about 5 years ago
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Part 2
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Database Enviroment
1 ANSI-SPARC
1.1 American National Standards Institute, Standards Planning And Requirements Committee.
1.2 standard for DBMS
1.3 Levels
1.3.1 External
1.3.1.1 user view
1.3.2 Conceptual
1.3.2.1 community view
1.3.3 Internal
1.3.3.1 physical representation of DB
2 Advantages
2.1 customized user view
2.2 hides physical storage details from users
2.3 changes by DB admin doesn't effect user view
3 Data Model
3.1 documentation for data org.
3.2 Record- Based
3.2.1 Network
3.2.2 Hierarchial
3.2.3 Relational
3.3 Object- Based
3.3.1 Entity-Relationship
3.3.2 Functional
3.3.3 Object-Oriented
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