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Introduction to odbms

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ajay pashankar

Introduction to odbms

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Chapter 24 Introduction to Object DBMSs Prepared by Ajay pashankar
Object Oriented DBMS History ,[object Object],[object Object],[object Object]
The weakness of RDBMSs ,[object Object],[object Object],[object Object]
The weakness of RDBMSs (cont) ,[object Object],[object Object],[object Object],[object Object]
New database applications ,[object Object],[object Object],[object Object],[object Object],[object Object]
New database applications (cont) ,[object Object],[object Object],[object Object],[object Object]
Why consider these new applications? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Object Oriented data Model ,[object Object],[object Object]
What is encapsulation? ,[object Object]
Other OOP concepts ,[object Object],[object Object]
Object Oriented data Model(cont) ,[object Object],[object Object],[object Object]
Objects ,[object Object],[object Object],[object Object],[object Object]
Objects (cont) ,[object Object],[object Object],[object Object],[object Object]
class timeSeries { /* variables */ List* entryList; /* list of elements */ time beginning; time ending; elementDescriptor elemDesc; /* element type descriptor */ /* messages */ elementDescriptor getElementType(); Tuple getFirstElement(); Tuple getLastElement(); Tuple getFirstElementAfter(time t); } Example Object class
Inheritance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Polymorphism ,[object Object],[object Object],[object Object],[object Object]
Object Identity ,[object Object],[object Object],[object Object]
Object containment ,[object Object],[object Object]
Other Object Oriented techniques ,[object Object],[object Object],[object Object]
Persistent Programming Languages ,[object Object],[object Object]
Persistent Programming Languages (cont) ,[object Object],[object Object],[object Object]
Persistent Programming Languages (cont) ,[object Object],[object Object],[object Object],[object Object]
Making Objects Persistent ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Some OODBs Have Limited Query Capability ,[object Object],[object Object],[object Object],[object Object],[object Object]
Some OODBs Have Limited Query Capability (cont) ,[object Object],[object Object],[object Object]
Complex Objects ,[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Introduction to odbms

  • 1. Chapter 24 Introduction to Object DBMSs Prepared by Ajay pashankar
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