what is the difference between functional dependecy and
multilevel dependency?
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write a query to dispaly those name who is more than one in student table? example- in a student table sandeep kumar comes 4 times, rakesh kumar comes 2 times, ajit kumar comes 1 times so query will display sandeep kumar and rakesh kumar single times.
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i deleted 4 records form the table.after i have applied commit .now i want to get back those records.how?
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