The Three Schema Architecture proposes that there are three levels of database description: internal,external and physical.
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Q12: Data is said to be interrelated when
Q13: File processing systems can manage only one
Q14: Database technology is vital to the functioning
Q15: In the Three Schema Architecture,both the external
Q16: Over the years,DBMSs have evolved to the
Q18: A database is said to be shared
Q19: COBOL and Visual Basic are both examples
Q20: The retrieval of summarized data to support
Q21: A Database is:
A) The collection of disks
Q22: Which of the following is a characteristic
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