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【单项选择题】

Evaluate this SQL statement:<br /> SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE<br /> FROM employees e, sales s<br /> WHERE e.employee_id = s.emp_id;<br /> What will happen if you remove all the parentheses from the calculation? ()<p> Evaluate this SQL statement:<br /> SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE<br /> FROM employees e, sales s<br /> WHERE e.employee_id = s.emp_id;<br /> What will happen if you remove all the parentheses from the calculation? ()</p>

A、A. The value displayed in the CALC_VALUE column will be lower.

B、B. The value displayed in the CALC_VALUE column will be higher.

C、C. There will be no difference in the value displayed in the CALC_VALUE column.

D、D. An error will be reported.

更多“Evaluate this SQL statement:<br /> SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE<br /> FROM employees e, sales s<br /> WHERE e.employee_id = s.emp_id;<br /> What will happen if you remove all the parentheses from the calculation? ()<p> Evaluate this SQL statement:<br /> SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE<br /> FROM employees e, sales s<br /> WHERE e.employee_id = s.emp_id;<br /> What will happen if you remove all the parentheses from the calculation? ()</p>”相关的问题
第1题

A、A. It executes successfully but partition pruning cannot happen for this partition key.  B、B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key.  C、C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key.  D、D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.  

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第2题

A、Selection, projection, join  B、Difference, projection, join  C、Selection, intersection, join  D、Intersection, projection, join  E、Difference, projection, product  

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第3题

A、The results are not sorted.  B、The results are sorted numerically.  C、The results are sorted alphabetically.  D、The results are sorted numerically and then alphabetically.  

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第4题

A、The results are not sorted.  B、The results are sorted numerically.  C、The results are sorted alphabetically.  D、The results are sorted numerically and then alphabetically.  

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第7题

A、0  B、1  C、0.00  D、An error statement  

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