What is the difference between internal and external schema?
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What is the use of INCTYPE option in EXP command ?
Where is data stored in database?
What are the restrictions applicable while creating views?
Enlist the various transaction phases.
How many number of columns can a RECORD GROUP have ?
What is data redundancy in dbms?
What is an artificial (derived) primary key? When should it be used?
Where is data stored in a database?
What are the disadvantages of a query?
How do you copy a database?
Do we consider null values the same as that of blank space or zero?
Explain the Difference Between a Primary Key and a Foreign Key.
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