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what do you mean by consistency in rdbms?
why three level architecture had been developed/
What is Candidate Key Super Key or Candidate Key: It is such an attribute of a table that can uniquely recognize a row in a table. Generally they have unique values and can n
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
explain cascading rollback
3. (10 points) Assume that you have been presented with the following relation for the Baxter Aviation database: Charters (Pilot#, Pilot name, Aircraft ID#, #seats, Village, Fligh
what is primary key
What are the typical phases of query processing
what is bogus empowerment. And what is genuine empowerment
Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass
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