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SQL programmingYou can use the HCL OneDB™ implementation of the SQL language to develop applications for HCL OneDB™ database servers.
Guide to SQL: SyntaxThe HCL OneDB™ Guide to SQL: Syntax describes the syntax of the statements, data types, expressions, operators, and built-in functions of the HCL OneDB™ dialect of the SQL language.
Data types and expressionsThese topics describe the data types and expressions that HCL OneDB™supports.
Expression
Function Expressions
Exponential and Logarithmic Functions Exponential and logarithmic functions take at least one argument and return a FLOAT data type.
LN functionThe LN function is an alias for the LOGN function, and returns the natural logarithm of a numeric argument. This value is the inverse of the exponential value.

LN function

The LN function is an alias for the LOGN function, and returns the natural logarithm of a numeric argument. This value is the inverse of the exponential value.

LN Function

The following query returns the natural logarithm of population for each row in the history table:

SELECT LN(population) FROM history WHERE country='US'
   ORDER BY date;