LOG2

Syntax

LOG2(X)

Description

Returns the base-2 logarithm of X.

Examples

SELECT LOG2(4398046511104); +---------------------+ | LOG2(4398046511104) | +---------------------+ | 42 | +---------------------+  SELECT LOG2(65536); +-------------+ | LOG2(65536) | +-------------+ | 16 | +-------------+  SELECT LOG2(-100); +------------+ | LOG2(-100) | +------------+ | NULL | +------------+

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