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Relational Algebra-Database Systems

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Chapter 4 Relational Algebra Pearson Education © 2009
Chapter 5 - Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Introduction ,[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Relational Algebra ,[object Object],[object Object],[object Object],Pearson Education © 2009
Relational Algebra ,[object Object],[object Object],[object Object],Pearson Education © 2009
Relational Algebra Operations Pearson Education © 2009
Relational Algebra Operations Pearson Education © 2009
Selection (or Restriction) ,[object Object],[object Object],Pearson Education © 2009
Example - Selection (or Restriction) ,[object Object],[object Object],Pearson Education © 2009
Projection ,[object Object],[object Object],Pearson Education © 2009
Example - Projection ,[object Object],[object Object],Pearson Education © 2009
Union ,[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Union ,[object Object],[object Object],Pearson Education © 2009
Set Difference ,[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Set Difference ,[object Object],[object Object],Pearson Education © 2009
Intersection ,[object Object],[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Intersection ,[object Object],[object Object],Pearson Education © 2009
Cartesian product ,[object Object],[object Object],Pearson Education © 2009
Example - Cartesian product ,[object Object],[object Object],Pearson Education © 2009
Cartesian Product
Example - Cartesian product and Selection ,[object Object],[object Object],[object Object],Pearson Education © 2009
Join Operations ,[object Object],[object Object],[object Object],Pearson Education © 2009
Join Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Theta join (  -join) ,[object Object],[object Object],[object Object],Pearson Education © 2009
Theta join (  -join) ,[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Equijoin ,[object Object],[object Object],Pearson Education © 2009
Natural join ,[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Natural join ,[object Object],[object Object],[object Object],Pearson Education © 2009
Outer join ,[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Left Outer join ,[object Object],[object Object],[object Object],Pearson Education © 2009
Semijoin ,[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Semijoin ,[object Object],[object Object],Pearson Education © 2009
Division ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example - Division ,[object Object],[object Object],[object Object],Pearson Education © 2009
Aggregate Operations ,[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example – Aggregate Operations ,[object Object],[object Object],Pearson Education © 2009
Grouping Operation ,[object Object],[object Object],[object Object],[object Object],Pearson Education © 2009
Example – Grouping Operation ,[object Object],[object Object],[object Object],Pearson Education © 2009

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Relational Algebra-Database Systems