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numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
numeric_expression: The set of records to calculate the sample standard deviation for.
Examples
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.