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Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Explain the concept of a data model ? Data Model - Model is an abstraction procedure which hides irrelevant details although highlighting details relevant to the application
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
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 mo
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
Explain the Dynamic Hashing Techniques There are two methods in it: extendible hashing - stores an access structure in addition to the file, and therefore is somewhat identica
This project requires you to perform a systems analysis and then design a system solution using database software. Ace Auto Dealers specializes in selling new vehicles from Subaru.
explain various steps uses in evaluation and maintenance of MIS.
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