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Create centralized relational database using Top down method- Construction of Logical Model: Translation EERD into Relational Schema:Use the 8 steps algorithm of converting EERD into a set of relations, given in the text book "Elmasri and Navathe", to translate your EER model to a relational model. Describe each step of the algorithm.
What are the uses of functional dependencies? To test relations to see whether they are legal under a given set of functional dependencies. To state constraints on the set
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
What is foreign key? Foreign Key - Let there are two relations in tables R and S. Any candidate key of the relation R that is referred in the relation S is known as the forei
Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
brief history,definition,current trends and future trends if any of data fragmentation
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
Consider the entity type dependent related to employee entity, which is used to keep track of the dependents of every employee. The attributes of dependents are: name, sex, birth d
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
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