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Which database level is closest to the users?
External database level is closest to the users.
What is disadvantage of multiple inheritances? There is potential ambiguity if the similar variable or method can be inherited from more than one superclass.eg: student class m
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
What are the function of DBA?
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
Distributed Database Management System
Question 1 Discuss about second normal form and third normal form Question 2 Write short note on 1) Data Manipulation Language 2) Data Definition La
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
What is NULL? Simply NULL means not in value.
Illustrate the collaboration and relationship diagram A collaboration is the society of interfaces, classes and other elements which work together to provide some cooperative b
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