Database Systems - Section 6 Multiple Questions and Answers.
Exercise Questions ::
Database Systems
Published by:Michael Daani
Published by:Michael Daani
Published by:Michael Daani
39. | Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? |
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| A. | report writer |
| B. | query language |
| C. | data manipulation language |
| D. | transaction log |
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Published by:Michael Daani
40. | Two files may be joined into a third file if |
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| A. | they have a row in common |
| B. | they have a field in common |
| C. | they have no records with the same value in the common field |
| D. | both (b) and (c) |
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Published by:Michael Daani
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