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Which method of access uses key transformation?
A Hash method of access uses key transformation.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Explain in details about Data Sharing
Demonstrate the Design of associations During object design phase we must design a strategy to implement associations. Association may be unidirectional or bi-directional. Wha
What is it ?
Write short note on Data models? Data models: A data model is an abstract model which elaborates how data is represented and accessed. The term data model has two commonly ac
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
Which operations need the participating relations to be union compatible? A UNION, INTERSECTION and DIFFERENCE operations need the participating relations to be union compatibl
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
Which two tools are used to administer users for Active Directory?
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
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