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Write short notes on relational model
The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an example of a record based model.
What is OLAP? OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other
Atomicity : Either all functions are laid out or none are. Users could not have to think about the effect of incomplete operations. DBMS ensures this by undoing the functions
In which format database schema is written ? Data base schema is written in the DDL format.
Create 1 experiment to demonstrate an aspect of query optimisation by using access-path structures (indexes), decomposition, or denormalisation. Once satisfied with your experiment
Attributes and its types explain?
HOW MANY TYPES OF VIEWS
Why is database design important?
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
The State of Newyork certifies firefighters throughout state keep track all of them, as well as the state’s of fire departments. Each fire department has unique department number
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