COUNT

Returns the number of rows matching the query criteria.

SELECT COUNT(*) FROM Issues WHERE ContentRaw = 'Bug'

COUNT(DISTINCT)

Returns the number of distinct, non-null field values matching the query criteria.

SELECT COUNT(DISTINCT Title) AS DistinctValues FROM Issues WHERE ContentRaw = 'Bug'

AVG

Returns the average of the column values.

SELECT ContentRaw, AVG(AnnualRevenue) FROM Issues WHERE ContentRaw = 'Bug'  GROUP BY ContentRaw

MIN

Returns the minimum column value.

SELECT MIN(AnnualRevenue), ContentRaw FROM Issues WHERE ContentRaw = 'Bug' GROUP BY ContentRaw

MAX

Returns the maximum column value.

SELECT ContentRaw, MAX(AnnualRevenue) FROM Issues WHERE ContentRaw = 'Bug' GROUP BY ContentRaw

SUM

Returns the total sum of the column values.

SELECT SUM(AnnualRevenue) FROM Issues WHERE ContentRaw = 'Bug'