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Which method is used to key transformation ?
A hash method is used to key transformation.
If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,
it can be possible to create any table without primary key
what do you mean by primary key constraint?
What are the four main characteristics of the database approach? The four major characteristics of the database approach are: 1. Self-describing nature of a database system. 2.
What are ways of finding out either an update is required or not for derived attributes? The ways to find out an update is required or, not are as: Explicit update
For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of
what is query processing ,query optimization and performance turring?
Explain the Query Processing Data Query Processing permits a user to report or analyze structured and unstructured data pulled from multiple data sources.
Explain the disadvantages of file oriented approach? In the oriented approach Applications are designed in isolation. Design of application is optimized for one application. In
i would like to ask if you will do assignment of database number of words 1500 and how much
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