Maurice Tutor

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Teaching Since: May 2017
Last Sign in: 408 Weeks Ago, 2 Days Ago
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 12 Oct 2017 My Price 9.00

primary key attributes,

Using the Hotel schema, assume the following indexes exist:

* a hash index with no overflow on the primary key attributes, roomNo/hotelNo in Room;

* a clustering index on the foreign key attribute hotelNo in Room;

* a B+ -tree index on the price attribute in Room;

* a secondary index on the attribute type in Room.

(a) Calculate the cardinality and minimum cost for each of the following Selection operations:

(b) Calculate the cardinality and minimum cost for each of the following Join operations:

(c) Calculate the cardinality and minimum cost for each of the following Projection operations:

Answers

Maurice Tutor
(5)
Status NEW Posted 12 Oct 2017 10:10 PM My Price 9.00

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