Aggregates Aggregate

var_samp()

Returns the sample variance of all input values.

Arguments & returns

Aggregate

Overload link	`x`	Returns
#01	`DOUBLE`	`DOUBLE`

SELECT (SUM(x^2) - SUM(x)^2 / COUNT(x)) / (COUNT(x) - 1)
FROM (VALUES
  (10),
  (20),
  (NULL)
) AS sample("x");

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