DBI202_-_FA_2023_-_RE_1149.webp
AllMight90

DBI202_-_FA_2023_-_RE_1149.webp

(Choose 1 answer)
Column A of a relation has the following list of values in the six rows of the table:
NULL, NULL, 10, 10, 20, 30
In SQL Server, which of the following is the correct value of AVG(DISTINCT A)?
A. 15
B. NULL
C. 20
D. 10


Exit 15

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