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Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls?
Question 2 With a necessary example explain (i) Basic Constructs of E-R Modeling (ii) E-R Notations
Question 3 Explain the first 3 Normal Forms taking the help of an un-normalized relation and reducing it to 3 NF
Question 4 Explain the concept of Data Mining? How it is related with data warehouse
Question 5 Write the SQL queries using Data Manipulation Language (DML) statements
Question 6 Create the payroll database considering table employee
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
explaination
Differentiate between a Global and a Local temporary table? - A local temporary table exists only for the duration of a connection or if defined inside a compound statement, fo
File Manager File manager handles the allocation of space on disk storage. It starts and maintains the list of structures and indices described in the internal schema that is
I need to Map an E-R diagram to a relational schema
The H. I. Topi School of Business operates international business programs in 10 locations throughout Europe. The school had its first class of graduates in 1965. The school keep
wh
Process-oriented decompositions Process-oriented decompositions divide complex process, task or function into simpler sub processes until they get simple enough to be deal
Question: (a) What is ODBC and what is its function? (b) What is Web application server, and how does it work from a database perspective? (c) What does e-commerce mean
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
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