LN
Returns the logarithm of the given argument to base e.
Syntax
LN ( number )
Arguments
number: the number to take the logarithm of.
Note
LOG(n) is an alias for LN(n).
LN(n) is equivalent to LOG(n) / LOG(e).
Return Type
Float or double. If number is less than or equal to 0, or if base is non-positive or 1, returns NULL.
Examples
SELECT LN(1234); **** +--------------------+ | LN(1234) | +--------------------+ | 7.1180162044653335 | +--------------------+