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List the set operations of SQL?
1) Union
2) Intersect operation
3) The except operation
Explain Record Based Logical Models? Record-Based logical Models: Also define data at the conceptual and view levels. Unlike object-oriented models, are used to state overall
Define the terms entity, attribute, role and relationship between the entities, giving examples for each of them. Ans: Entity: An entity is a "thing" or "object" in th
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
WHAT IS DBMS
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
Control as State within Program 1. The term control exactly means to check effect of input within a program. For illustration, in Figure, after the ATM card is inserted (a
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
I need help for my Uni assignments
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
Explain the concept of generalization and aggregation in E_R diagrams. Give one example for each one of them? Generalization: Consider extending the entity set account throug
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