LOG
Syntax
LOG( value, base )
Description
Returns the logarithm of value
to base base
. Returns 'NULL' if the number value
is less than or equal to 0.
Argument types:
value
—Number
base
—Number
Return type: Number (decimal)
Examples
LOG(1, 2.6) = 0.0
LOG(1024, 2) = 10.0
LOG(100, 10) = 2.0
Data source support
Materialized Dataset
, ClickHouse 1.1
, Microsoft SQL Server 2017 (14.0)
, MySQL 5.6
, Oracle Database 12c (12.1)
, PostgreSQL 9.3
.