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Describe the development process of Object oriented methods Object oriented methods have roots which are strongly anchored back in the 60s, functional and structured methods we
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
Consider a database schema consisting of four relations, whose schemas are: Product (maker, model, type) PC (model, speed, ram, hd, price) Laptop (model, speed, ram, hd, s
Consider the subsequent relations RENTER(rno, fname, lname, address, tel_no, pref_type, max_rent) VIEWING(rno, pno, date, comment) PROPERTY_FOR_RENT( pno, street, area ,city,
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Suppose that in an organisation, an employee may do different roles in dissimilar projects. Say, RAM is doing coding in one project and doing designing in another. Suppose that the
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
We have a buildup of payments that need to be processed. You will need:- To prepare customer account on our site Process payment (you must have working Paypal account to d
define locking in simple language and decribed it
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