Question: Which of the following statements using GROUP BY clause are allowed in SQL Server 2008?
A
B
C
D
SELECT Column1 + Column2 FROM Table GROUP BY Column1, Column2
B
SELECT Column1, Column2 FROM Table GROUP BY Column1 + Column2
C
SELECT Column1 + constant + Column2 FROM Table GROUP BY Column1 + Column2
D
SELECT Column1 + Column2 FROM Table GROUP BY Column1 + Column2
Note: Not available