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This documentation is for the unreleased development version of jOOQ. Click on the above version links to get this documentation for a supported version of jOOQ.

LOG

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:

ASE, Access

(log(8) / log(2))

Aurora MySQL, Aurora Postgres, Exasol, Firebird, H2, Hana, MariaDB, MemSQL, MySQL, Oracle, Postgres, Redshift, Snowflake, Trino, Vertica, YugabyteDB

log(2, 8)

BigQuery, SQLDataWarehouse, SQLServer

log(8, 2)

ClickHouse, DB2, Derby, DuckDB, HSQLDB, SQLite, Sybase, Teradata

(ln(8) / ln(2))

CockroachDB

(ln(CAST(8 AS decimal)) / ln(CAST(2 AS decimal)))

Informix

(logn(8) / logn(2))

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

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