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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)
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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