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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)

CockroachDB

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

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

(ln(8) / ln(2))

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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