仅指定不同的列

Question

I wish to select two distinct columns and one normal. But it seems like the error of missing right parenthesis keep coming out when i already written properly.

Here's the sample code:

Select Distinct(F.DATE, F.EXAM_TIME), T.*
From Test T, ExamRecords F
Where T.TestNo= 10
And T.TestPaper = 'Science';

Thanks for any clarification given/mistakes that i have made~

Answer 1

DISTINCT只能应用于查询结果中的整个行。

Answer 2

DISTINCT无法基于列工作，它适用于整行，您可能要使用Group BY