GROUP BY (Aggregate) Functions

AVG() Return the average value of the argument
BIT_AND() Return bitwise and
BIT_OR() Return bitwise or
BIT_XOR()(v4.1.1) Return bitwise xor
COUNT(DISTINCT) Return the count of a number of different values
COUNT() Return a count of the number of rows returned
GROUP_CONCAT()(v4.1) Return a concatenated string
MAX() Return the maximum value
MIN() Return the minimum value
STD() Return the population standard deviation
STDDEV_POP()(v5.0.3) Return the population standard deviation
STDDEV_SAMP()(v5.0.3) Return the sample standard deviation
STDDEV() Return the population standard deviation
SUM() Return the sum
VAR_POP()(v5.0.3) Return the population standard variance
VAR_SAMP()(v5.0.3) Return the sample variance
VARIANCE()(v4.1) Return the population standard variance