Relational Model and Algebra free PDF


  • Relational data mode, Schema vs. instance
  • Relational algebra, Selection and exemple
  • More on selection, Projection
  • Cross product, A note a column ordering
  • Derived operator: join, Derived operator: natural join
  • Union, Difference, Derived operator: intersection
  • Renaming example, Expression tree notation
  • Summary of core operators, Summary of derived operators
  • An exercise, A trickier exercise
  • Classification of relational operators, Why is “ ” needed for “highest”?
  • Extensions to relational algebra, Why is r.a. a good query language?
  • Relational calculus, Limits of relational algebra
Description : Download free Introduction to Databases, Relational Model and Algebra course tutorial, a PDF file by Jun Yang, Brett Walenz.
Level : Beginners
Created : April 1, 2016
Size : 281.56 KB
File type : pdf
Pages : 41
Author : Jun Yang, Brett Walenz
Downloads : 755
Evaluation: 4.7/5   Total des votes : 9
Tutorial Relational Model and Algebra course Relational Model and Algebra
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