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Consider the subsequent relation
Professor (Pfcode, dept, head, time)
It is assumed that
(i) A professor can work in much more than one dept.
(ii) The time he spends in every dept is given.
(iii) Every dept has only one head
Draw the dependency diagram for the above relation by recognizing the dependencies.
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When is a transaction rolled back? Any changes that the aborted transaction made to the database must be uncompleted. While the changes caused by an aborted transaction have be
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
various techniques of hashing?
Define reference file
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describe all the tables you have created. ?get table_name, status, num_rows, user_stats in user_tables system view ?get table_name, constraint_name, constraint_type in user_constr
Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
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