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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
Question: (a) What are decision support systems, and what role do they play in the business environment? (b) Data mining is a knowledge discovery process of automated extr
Describe identifying relationship? Identifying relationship: It is relationship among strong entity and a weak entity it is represented through a doubly outlined diamond in C
A student entity type has the following attributes,name..
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
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tell me the functionality,advantages and disadvantages of student database
What is a candidate key? Minimal super keys are known as candidate keys.
Explain group By clause in SQL? Group By clause in SQL: The GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results thro
Q.1 Briefly discuss the different layers of ANSI SPARC architecture. Ans: The three layers of ANSI SPARC architecture are like this: 1. Internal view is at the lowest leve
Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
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