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LN | Snowflake Documentation

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Numeric functions (Logarithmic)

Returns the natural logarithm of a numeric expression.

LN(<expr>)

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• Always returns a floating point number, even if the input expression is of type integer.

• If the input expression is less than or equal to 0, an error is returned.

SELECT x, ln(x) FROM tab;

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

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