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#questiontypes of keys examples..
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
Data slice explanation
Sub query in the UPDATE command : Example : //Double the commission for employees, who have got at least 2 increments. UPDATE EMP SET COMM = COMM * 2 WHERE
Where does view definition stored? A view definition is permanently stored as part of the database.
coventions for displaying an ER schema as ER diagram
what is specialization?
Question: Describe briefly the three parts of the Relational Model. (a) The term integrity refers to the accuracy or correctness of the data in the database. Define the fol
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
Speedup Query Processing: A query that includes data at various sites can be split into sub-queries. These sub- queries can be implemented in parallel by various sites. Such parall
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