Oracle LN() function
Description
 Oracle LN() returns the natural logarithm of a number that is the base e logarithm of the number, where the number is greater than 0.
The function accepts any numeric or nonnumeric data type (can be implicitly converted to a numeric data type) as an argument. 
If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise the function returns the same numeric data type as the argument.
Uses of Oracle LN() Function
- Mathematical Calculations: Calculate natural logarithms in mathematical formulas.
 - Data Analysis: Analyze data by applying logarithmic transformations.
 - Financial Modeling: Use in financial models to compute logarithmic growth rates.
 - Scientific Computing: Perform logarithmic calculations in scientific research.
 - Algorithm Development: Implement in algorithms requiring logarithmic computations.
 - Statistical Analysis: Apply in statistical methods that use natural logarithms.
 
Syntax:
LN (N)
Where N is a number.
Pictorial Presentation of LN() function
Example:
The statement below returns the natural logarithm of 3.
SELECT LN(3) FROM dual;
Here is the result.
     LN(3)
----------
1.09861229
