Name

BIT_COUNT( )

Synopsis

BIT_COUNT(number)

This function returns the number of bits set in a given number, an integer that is treated as a binary number.

SELECT BIT_COUNT(10), BIT_COUNT(11);
+---------------+---------------+
| BIT_COUNT(10) | BIT_COUNT(11) |
+---------------+---------------+
|             2 |             3 |
+---------------+---------------+

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