试题详情
- 单项选择题 Evaluate these two SQL statements:
What is true about them?（） A、The two statements produce identical results.
B、The second statement returns a syntax error.
C、There is no need to specify DESC because the results are sorted in descending order by default.
D、The two statements can be made to produce identical results by adding a column alias for the salary column in the second SQL statement.
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