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What is E-R model?
This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a database by a set of attributes.
Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
explain the steps for reduction of er model into relational model?
Question: Data Mining is the process of extracting knowledge hidden from large volumes of raw data. (a) Using a suitable example, illustrate how Data Mining can be useful t
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
A super key is an attribute or set of attributes used to recognize the records uniquely in a relation. For instance, in the Relation PERSON defines earlier PERSON_ID is a super
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
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