Categories:: Numeric functions (Logarithmic)

LN¶

Returns the natural logarithm of a numeric expression.

Syntax¶

LN(<expr>)

Returns¶

If the input expression is of type DECFLOAT, the returned type is DECFLOAT. Otherwise, the returned type is FLOAT.

Examples¶

SELECT x, ln(x) FROM tab;

--------+-------------+
   X    |    LN(X)    |
--------+-------------+
 1      | 0           |
 10     | 2.302585093 |
 100    | 4.605170186 |
 [NULL] | [NULL]      |
--------+-------------+