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Data Warehousing & Mining
1. What is the concept of knowledge discovery in database?
2. Describe the following types of Multidimensional Data Models.• Stars, Snowflakes and Constellations• Concept Hierarchies• OLAP Operations
3. Discuss the following Data Preprocessing techniques.
4. State a frequent set.
5. Define the terms Classification and Prediction. Discuss the issues pertaining to Classification and Prediction.
6. Explain major clustering methods with examples.
Explain the Natural join Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinati
Problem 1 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples 2 Explain the following performance tuning techn
Demonstrate your knowledge of PL/SQL programming by writing and thoroughly testing triggers and stored procedures associated with an e-commerce application that provides security l
What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
What is substitutability? Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, a
Question 1 Describe the following- Clustering Indexing Question 2 Explain the following with suitable real time examples- Implementation of Integrity rules
List and explain the memory constructs of the Oracle 12c databases?
Prepare a data flow diagram for computing the volume and surface area of a cylinder. Inputs are the height and radius of the cylinder. Outputs are the volume and surface area of th
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