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Backward Recovery (UNDO): In this system the uncommitted changes made by a transaction to a database are undone. Instead the system is reset to the last consistent state of databa
Aggregation Aggregation is stronger form of association. It represents the "has-a" or "part-of" relationship. An aggregation association depicts a complex object which is comp
Design a gennalization and specialization hierarchy for an automobile sales company
Explain how you can define an object model of a system. A list of terms that shall be used by end users to describe state and behaviour of objects in system. Different use
These are designed to reduce the effects of a database failure and make sure a database is restored to a consistent state if a failure does arise. Manual backup/restore utilities n
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
what is Lossless-join decomposition
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
WHAT IS SQL
Complexity : A distributed DBMS that is available, reliable, and secure is inherently more difficult than a centralised DBMS. Though, adequate data replication is essential to have
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