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What are the several forms of identity? a) Value b) Name c) Built-in
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
job scheduling for different cubes
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
What are the problems if one were not to normalize? When do these problems surface? Ans: Database normalization, sometimes considered to as canonical synthesis, is
Question: (a) Why is it important to know the architecture rather than to start requirement capture when designing a large scale system? (b) Who are the different people in
Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen
Explain the difference between using functions along with and without grouping attributes in relational algebra. Give examples. Ans: Group functions are used to group data of
Benefits and Limitations od Data Models?
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