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Write short notes on domain relational calculus
The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole tuple.
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
what is database management system? & why it is required?
In E-R Diagram how derived attribute are represented ? In E-R Diagram By Dashed ellipse derived attribute are represented.
What are the drawbacks of shadow-paging technique? The drawbacks of shadow paging is:- a) Commit Overhead b) Data fragmentation c) Garbage collection
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
Give Concurrent sub states diagram for the classroom and exam held. In Figure, simultaneous substrates have been taken. After passing Minor 1 test you could give Minor 2 test. T
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
What disadvantage of ODBC does OLE DB overcome? By breaking the features and the methods of a DBMS into COM objects, OLE DB characteristic overcomes a main disadvantage of ODBC
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
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