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Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Question : Object-Oriented Database (OODM) is defined as a logical data model that captures the semantics of objects supported in object-oriented programming. An Object-Oriente
losers with new information systems
Normal 0 false false false EN-US X-NONE X-NONE
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
what is union compatable?
discuss the purpose of the concurrency control?
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
List out various user authorization to modify the database schema. a) Index authorization b) Resource authorization c) Alteration authorization d) Drop authorizat
Removing a Synonym: DROP SYNONYM D30;
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