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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
explain the steps for reduction of er model into relational model?
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
I have to solve a problem using access
Describe Application programming interface? Application Programming Interface - Commercial SQL implementations take one of the two primary techniques for involving SQL in a p
Express the properties of Strings? Strings can be case sensitive (or not) which can change the outcome of string operations. You can evaluate whole strings \ just part
Determine the advantage of object-orientation Finally, object-orientation has advantage of continuity throughout analysis, persistent representation and design implementation.
Examples:- Hierarchical Model: It tells data as and relationships by hierarchy of data values. Figure illustrates an example of hierarchical model. Now a day's these models are
Performance of Various Concurrency Control Mechanisms
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