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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:

-- ACCESS, ASE, SQLDATAWAREHOUSE, SQLSERVER
log(1)

-- AURORA_MYSQL, AURORA_POSTGRES, CUBRID, DB2, DERBY, FIREBIRD, H2, HANA, HSQLDB, INGRES, MARIADB, MEMSQL, MYSQL, ORACLE, 
-- POSTGRES, REDSHIFT, SYBASE, TERADATA, VERTICA
ln(1)

-- COCKROACHDB
ln(CAST(1 AS numeric))

-- INFORMIX
logn(1)

-- SQLITE
/* UNSUPPORTED */

(These are currently generated with jOOQ 3.15, see #10141)

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