Returns the natural logarithm of a number.

Syntax

LOG( numeric-expression )

Parameters

See also

• LOG10 function [Numeric]

Remarks

The argument is an expression that returns the value of any built-in numeric data type.

This function converts its argument to DOUBLE, performs the computation in double-precision floating point, and returns a DOUBLE as the result. If the parameter is NULL, the result is NULL.

Standards and compatibility

Example

The following statement returns the natural logarithm of 50.

SELECT LOG( 50 );