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Question 1:
Define the term business intelligence tools? Briefly explain how the data from one end gets transformed into information at the other end?
Question 2:
What do you understand by data ware house? What are the major concepts and terminology used in the study of data warehouse?
Question 3:
What are the data modelling techniques used in data warehousing environment?
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
MOSS VALE is a town with 15000 inhabitants. The fire department wishes to develop a system that automates the despatch of fire engines to attend fires. The ERD below describes the
What is the meaning of Data independence? Data independence means a programs that are not dependent on the physical attributes of data and a programs that are not dependent on
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
.#question. Discuss the problem which may arise during concurrency control and recovery in distributed database which are not encountered in controlized database environment.
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
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