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Documents Lecture 10: Relational Algebra. Relational Algebra A formalism for creating new relations from...

Slide 1Lecture 10: Relational Algebra Slide 2 Relational Algebra A formalism for creating new relations from existing ones Its place in the big picture: Declarative query…

Documents Relational Algebra Maybe -- SQL. Confused by Normal Forms ? 3NF BCNF 4NF If a database doesn’t...

Slide 1 Relational Algebra Maybe -- SQL Slide 2 Confused by Normal Forms ? 3NF BCNF 4NF If a database doesn’t violate 4NF (BCNF) then it doesn’t violate BCNF (3NF) !…

Documents 1 Lecture 7: Query Execution and Optimization Tuesday, February 20, 2007.

Slide 1 1 Lecture 7: Query Execution and Optimization Tuesday, February 20, 2007 Slide 2 2 Outline Chapters 4, 12-15 Slide 3 3 DBMS Architecture How does a SQL engine work…

Documents Lecture 22: Relational Algebra Friday, November 19, 2004.

Slide 1 Lecture 22: Relational Algebra Friday, November 19, 2004 Slide 2 DBMS Architecture How does a SQL engine work ? SQL query  relational algebra plan Relational algebra…

Documents Relational Algebra 2. Relational Algebra Formalism for creating new relations from existing ones Its...

Slide 1Relational Algebra 2 Slide 2 Relational Algebra Formalism for creating new relations from existing ones Its place in the big picture: Declartive query language Algebra…