LN

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

The LOG() function calculates the logarithm of a numeric value, given a base.

SELECT log(8, 2);

create.select(log(8, 2)).fetch();

The result being

+-----+          
| log |
+-----+
|   3 |
+-----+

Dialect support

This example using jOOQ:

log(8, 2)

Translates to the following dialect specific expressions:

-- ACCESS, ASE
(log(8) / log(2))

-- CUBRID, FIREBIRD, H2, MARIADB, MYSQL, ORACLE, POSTGRES
log(2, 8)

-- DB2, DERBY, HSQLDB, INGRES, SYBASE
(ln(8) / ln(2))

-- INFORMIX
(logn(8) / logn(2))

-- SQLSERVER
log(8, 2)

-- AURORA_MYSQL, AURORA_POSTGRES, COCKROACHDB, HANA, MEMSQL, REDSHIFT, SQLDATAWAREHOUSE, SQLITE, TERADATA, VERTICA
/* UNSUPPORTED */

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

The jOOQ User Manual : SQL building : Column expressions : Numeric functions : LN

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