The following functions (also called aggregate functions) can be used with the GROUP BY clause:
Title | Description |
---|---|
Stored Aggregate Functions | Custom aggregate functions. |
AVG | Returns the average value. |
BIT_AND | Bitwise AND. |
BIT_OR | Bitwise OR. |
BIT_XOR | Bitwise XOR. |
COUNT | Returns count of non-null values. |
COUNT DISTINCT | Returns count of number of different non-NULL values. |
GROUP_CONCAT | Returns string with concatenated values from a group. |
MAX | Returns the maximum value. |
MIN | Returns the minimum value. |
STD | Population standard deviation. |
STDDEV | Population standard deviation. |
STDDEV_POP | Returns the population standard deviation. |
STDDEV_SAMP | Standard deviation. |
SUM | Sum total. |
VARIANCE | Population standard variance. |
VAR_POP | Population standard variance. |
VAR_SAMP | Returns the sample variance. |
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https://mariadb.com/kb/en/aggregate-functions/