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Lin, Jessica - Department of Information and Software Engineering, George Mason University
Schema Refinement & Normalization Theory
Structured Query Language Select Statements RevisitedSelect Statements Revisited
The Relational Model 2 Creating Relations in SQL
Schema Refinement & Normalization Theory 4
Relational Algebra 2 Relational Algebra
Schema Refinement & Normalization Theory 5
sid sname rating age 22 Dustin 7 45.0
GROUP BY and HAVING So far, we ve applied aggregate operators to all
Basic form of SQL Queries target-list A list of attributes of output relations in
Schema Refinement & Normalization Theory 3
Aggregate operators What is aggregation?
Database Programming Week 10 -2
Introduction to Indexing 2 Acknowledgements: Eamonn Keogh and Chotirat Ann Ratanamahatana
Relational Algebra 3 Review on Joins
Schema Refinement & Normalization Theory
Relational Algebra 4 Consider yet another query
Introduction to Indexing Acknowledgements: Eamonn Keogh and Chotirat Ann Ratanamahatana
Schema Refinement & Normalization Theory 2
SQL Constraints and Triggers Week 10 -1
Relational Algebra 1 Relational Query Languages
Review: Participation Constraints Does every department have a manager?
CS 450 -Database Concepts Instructor: Dr. Jessica Lin
