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1. |
If in Table Customer , a column Customer_id consists of {1,2,2,3,3,5,6,7,8,8} then what will be the output on executing the following query?
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A. | {1,2,3,5,6,7,8} |
B. | { } |
C. | {1,2,2,3,3,5,6,7,8,8} |
D. | All of above |
E. | None of these |
Answer» B. { } | |