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STD

Aggregate function. Calculates the population standard deviation value from a set of numbers. STD has synonyms STDDEV and STDDEV_POP which are equivalent. STD returns NULL if there are not matching rows.

STD ( expression )

Arguments

Return Type

A double.

Examples

memsql> select std(table_rows) from information_schema.tables;
+-----------------+
| std(table_rows) |
+-----------------+
|       2.1500    |
+-----------------+
1 row in set (2.87 sec)
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