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Which database object does not physically exist?
A view database object does not physically exist.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
sql is relationally complete-justify
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
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
An object-oriented design process 1. Define the context and modes 2. Designs the system architecture 3. Identifies the principal system objects 4. Identifies concurrency in
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
Which operations need the participating relations to be union compatible? A UNION, INTERSECTION and DIFFERENCE operations need the participating relations to be union compatibl
Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
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