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.
Explain the term precision in Data Structures? Answer: Precision considers as to the accuracy of the decimal portion of a value. It is the number of digits permitted
How would the developer describe variable by using referential data types?
Explain the term lattice of cuboids in brief.
Illustrates the ways to tune Reporting Services?
What do you understand by the term foreign key in DBMS, and why is it employed for?
Explain the difference between expression and aggregator?
Describe the various categories of the range of database application?
Briefly explain the capabilities and concepts of Business Object?
Define the term Smoothing.
Explain the types of jobs we have within the Data stage?
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