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Problem
1 What is a Data Warehouse? Mention its advantages
2 Explain the Top-Down and Bottom-up Data Warehouse development Methodologies
3 What is Data Transformation? Explain the tasks involved in it
4 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
What is bucket overflow and how bucket overflow is handled through Over Flow Chaining or Closed Hashing? Ans: Bucket: unit of storage holding records. Bucket is a disk block
What are the several forms of identity? a) Value b) Name c) Built-in
Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,
Create role named role_table that allows a user to create tables. Using role_table allow users kripa and reena to create tables. CREATE ROLE role_table; GRANT CREATE ANY TABLE
Consider a database application that deals with an Employee relation with information such as SIN, name, data of birth (DOB), and DID (the ID of the department at which the employe
Question : (a) Data mining is one of the best ways to analyse data and using software method, hidden and unexpected patterns and relationships in sets of data can be extracte
Define Forms Based Interfaces? Forms-Based Interfaces - A forms-based interface display a form to each user. Forms are commonly designed and programmed for naive users and inte
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
.#question. Discuss the problem which may arise during concurrency control and recovery in distributed database which are not encountered in controlized database environment.
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