Discussion :: Database System 2 - CS
- A UNION query is which of the following?
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A.
Combines the output from no more than two queries and must include the same number of columns. |
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B.
Combines the output from no more than two queries and does not include the same number of columns. |
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C.
Combines the output from multiple queries and must include the same number of columns. |
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D.
Combines the output from multiple queries and does not include the same number of columns. |
Answer : Option C
Explanation :
Explanation Not Provided
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