What is data modelling
What is meant by the data modelling?
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Data modelling represents the real world set of the data structures or entities and their relationship in their data models, needed for database.
There exist various types of modelling:
a) Logical data modelling. b) Conceptual data modelling. c) Physical data modelling. d) Relation data modelling. e) Enterprise data modelling. f) Dimensional data modelling.
Briefly describe the employed of data cube?
Define the term environment variables?
Describe briefly the ‘paradigm mismatch’ among SQL and application programming languages.
What are the differences between perfect competition and Monopoly?
Explain the working of the IPC Stage?
Write down the working procedure of Online Databases.
Illustrate briefly the term SQL sub query?
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Briefly describe the ETL procedure in data warehousing?
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