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STDDEV_SAMP

Aggregate function. Calculates the sample standard deviation value from a set of numbers. STDDEV_SAMP returns NULL if there are not matching rows.

STDDEV_SAMP ( expression )

Arguments

Return Type

A double.

Examples

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