Introduction to Databases with Stanford University : Relational Algebra Exercises

From Ittichai Chammavanijakul's Wiki
Revision as of 17:19, 16 November 2011 by Ittichai (talk | contribs) (Created page with " 1. Find all pizzas eaten by at least one female over the age of 20. <pre> \project_{pizza} ( \select_{gender='female' and age > 20} Person \join Eats) </pre>")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

1. Find all pizzas eaten by at least one female over the age of 20.

\project_{pizza} ( 
 \select_{gender='female' and age > 20} Person 
  \join Eats)