STDDEV_SAMP
Returns the sample standard deviation (square root of sample variance) of non-NULL values in a column with a numeric data type. If all records inside a group are NULL, returns NULL.
Syntax
STDDEV_SAMP(numeric_expression double) → double
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
SELECT STDDEV_SAMP(gas_used)
FROM eth.recent_blocks
-- 2.259665033869644
STDDEV_SAMP(numeric_expression float) → double
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
SELECT STDDEV_SAMP(gas_used)
FROM eth.recent_blocks
-- 2.259665033869644
STDDEV_SAMP(numeric_expression int32) → double
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
SELECT STDDEV_SAMP(transaction_count)
FROM eth.recent_blocks
-- 1.3670214641762426
STDDEV_SAMP(numeric_expression int64) → double
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
SELECT STDDEV_SAMP(transaction_count)
FROM eth.recent_blocks
-- 1.3670214641762426
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