MySQL and MariaDB - Overview of the Aggregate functions
MySQL and MariaDB provides a set of aggregate functions that can be used to perform calculations on a set of rows and return a single result. Aggregate functions can be useful when working with large sets of data and performing calculations on that data. They can be used to calculate statistics, summarize data, and perform other types of analysis. However, it is important to use them carefully and to ensure that they are used appropriately for the specific use case. Additionally, it is important to be aware of any limitations or performance considerations when using aggregate functions on large datasets.
Gibt die Stichproben- und Populationsabweichung eines Satzes numerischer Werte zurück, entspricht der Quadratwurzel der Stichprobenstandardabweichung der Werte. More about VAR_SAMP Function
Gibt die Stichproben- und Populationsabweichung eines Satzes numerischer Werte zurück, entspricht der Quadratwurzel der Stichprobenstandardabweichung der Werte. More about VARIANCE Function