Important

New database features are no longer connected to engine versions; features are now enabled independently during scheduled update windows, and “major” and “minor” releases no longer exist in Helios. Please visit the release notes to view the latest features available in your database clusters.

BIT_COUNT

Syntax

BIT_COUNT ( expression )

Arguments

expression: any valid numeric expression.

Return Type

The number of ones bits in the binary representation. Float values are truncated. Returns NULL if expression is NULL.

Examples

SQL

SELECT bit_count(8), bin(8);

+--------------+--------+
| bit_count(8) | bin(8) |
+--------------+--------+
|            1 | 1000   |
+--------------+--------+

SQL

SELECT bit_count(1234), bin(1234);

+-----------------+-------------+
| bit_count(1234) | bin(1234)   |
+-----------------+-------------+
|               5 | 10011010010 |
+-----------------+-------------+

SQL

SELECT bit_count(240), bin(240);

+----------------+----------+
| bit_count(240) | bin(240) |
+----------------+----------+
|              4 | 11110000 |
+----------------+----------+