Answered step by step
Verified Expert Solution
Question
1 Approved Answer
An objective of this task is to denormalize a conceptual schema to speed up processing of a given class of applications. Consider the following
An objective of this task is to denormalize a conceptual schema to speed up processing of a given class of applications. Consider the following conceptual schema: OWNER first-name 101 last-name 101 phone city street Sold ID2 1.. when-sold 1.. PROPERTY city ID street ID bldg ID bedrooms AGENT first-name ID1 Takes-care-about last-nane 101 phone 102 profile 1.. Employs a money-paid AGENCY nane ID specialization (1) Perform simplification of the conceptual schema above and migration of identifiers to implement the associations. Re-draw a simplified conceptual schema with migrated identifiers. (2) (3) We would like to improve the performance of the following class of applications: Find the specializations of real estate agencies (attribute specialization in a class AGENCY) that employ the agents who took care about selling n bedrooms real estate properties (attribute bedrooms in a class PROPERTY) owned by the owners from a given city (attribute city in a class OWNER). A sample application that belongs to a class described above is the following. Find the specializations of real estate agencies that employ the agents who took care about selling 5 bedrooms real estate properties owned by the owners from Sydney. Find a denormalization of the simplified conceptual schema that improves the performance of the class of applications described above. Re-draw a simplified conceptual schema after the denormalizations.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started