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Submit SQL INSERT Statements that will populate the database with sample data. You must insert at least 5 records into each table in your database.Submit your SQL INSERT Statements as one text file, with a .sql extension.
note on hashing technique
under what condition log based recovery is feasible?
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
WHAT IS MEANT BY E-R MODEL
explain exhausitively the problems associated with er diagrams with ellustrations
What are data models? Explain it detail? Entity relationship model Rectangles Ellipse Diamonds Lines Relational model Relational model use a collection
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
How does a query tree represent a relational algebra expression? Ans: This includes transforming an initial expression (tree) into an equivalent expression (tree) that is
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
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