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Problem
Explain at least five relational algebraic operators with a suitable example.
Note: All the above descriptions should be done by taking at least two examples from outside (Other than the text book examples)
Question A What is operational intelligence? Question B What is Business Intelligence? Explain the components of BI architecture Question C Differentiate between databas
Problem: (a) Given the following relation: Stats(Name,Sex,Children, Occupation, Salary, Tax, Audits) Write SQL code to define the following security constraints: (i) User
Differentiate between horizontal & mixed horizontal fragmentation?
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
Question: (a) Prepare an ERD for the scenario given below. (b) Convert the ER diagram produced in (a) above into its physical design. You have to choose an appropriate Pri
What are the reasons for having variable length records? What are the various ways to store variable length records? Variable-length records arise in a database in various wa
explain equi-join using illustration
What does Aggregation mean?
Increases efficiency : Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, there
File Organisation In Dbms Introduction Databases are used to store information. Usually, the principal operations we have to perform on database are those relating to:
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