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LOG function [Numeric]

Returns the natural logarithm of a number.

LOG( numeric-expression )

numeric-expression    The number.

• LOG10 function [Numeric]

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.

• SQL/2003    Vendor extension.

The following statement returns the natural logarithm of 50.

SELECT LOG( 50 );