Available in versions: Dev (3.20) | Latest (3.19) | 3.18 | 3.17 | 3.16 | 3.15 | 3.14 | 3.13 | 3.12 | 3.11 | 3.10

LN

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

The LN() function calculates the natural logarithm of a numeric value.

SELECT ln(1);
create.select(ln(1)).fetch();

The result being

+----+
| ln |
+----+
|  0 |
+----+

Dialect support

This example using jOOQ:

ln(1)

Translates to the following dialect specific expressions:

ASE, Access, SQLDataWarehouse, SQLServer

log(1)

Aurora MySQL, Aurora Postgres, BigQuery, DB2, Derby, DuckDB, Exasol, Firebird, H2, HSQLDB, Hana, MariaDB, MemSQL, MySQL, Oracle, Postgres, Redshift, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB

ln(1)

CockroachDB

ln(CAST(1 AS numeric))

Informix

logn(1)

(These are currently generated with jOOQ 3.20, see #10141), or translate your own on our website

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