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The Third Normal Form (3NF) Even though, transforming a relation that is not in 2NF into a number of relations that are in 2NF take out many of the anomalies, it does not neces
What are the advantages of having an index structure? Ans: The index structures commonly provide secondary access paths, which offer alternative ways of accessing the reco
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
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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:
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
Use inheritance as an implementation technique when you are going to use inheritance as an implementation technique, you can achieve same goal in a safer way by making one cla
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
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