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How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
Describe Interfaces for the DBA? Interfaces for the DBA - Most database systems holds privileged commands which could be used only through the DBA's staff. These involves com
You are working for the ABC Telecom and are given some customer records for data mining. You are asked to discover, from the data, patterns that characterize low-, medium- and high
Explain concurrency control? Concurrency control Oracles multiversion concurrency control varies from the concurrency mechanism used by some other data base vendors. Read
Explain the Role of a database administrator a. Defining the Schema The DBA describes the schema which consists of the structure of the data in the application. The DBA
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
what is primary key
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
waht is a repeating group?
WHAT IS DSS? WRITE ITS REQUIREMENTS.
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