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

1. Chapter 4 Relational Algebra Pearson Education © 2009

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6. Relational Algebra Operations Pearson Education © 2009

7. Relational Algebra Operations Pearson Education © 2009

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20. Cartesian Product

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