Database Systems: The Complete Book (2nd Edition), by Hector
Garcia-Molina Jeffrey D. Ullman Jennifer Widom
Department of Computer Science Stanford University
Exercise 14.3.3: The material of this section assumes that search keys are unique. However, only small modifications are needed to allow the techniques to work for search keys with duplicates. Describe the necessary changes to insertion, deletion, and lookup algorithms, and suggest the major problems that arise when there are duplicates in each of the following kinds of hash tables: (a) simple (b) linear (c) extensible.
SOLUTION:-
======================================================================================
Database Systems: The Complete Book (2nd Edition), by Hector Garcia-Molina Jeffrey D. Ullman Jennifer Widom Department...
Question from book - Database systems the complete book (second edition) by hector Garcia-molina Jeffery D. Ullman Jennifer Widom Exercise 7.5.2: Write the following as triggers. In each case, disallow or undo the modification if it does not satisfy the stated constraint. The database scheme is from the "PC" example of Exercise 2.4.1: Product(maker, model, type) PC(model, speed, ram, hd, price) Laptop(model, speed, ram, hd, screen, price) Printer(model, color, type, price) A) When updating the price of a PC, check...