DOUBLE log10(DOUBLE x) Returns the natural logarithm of x to base 10.
:::tip Another alias for this function is dlog10. :::
mysql> select log10(1); +------------+ | log10(1.0) | +------------+ | 0 | +------------+ mysql> select log10(10); +-------------+ | log10(10.0) | +-------------+ | 1 | +-------------+ mysql> select log10(16); +--------------------+ | log10(16.0) | +--------------------+ | 1.2041199826559248 | +--------------------+
LOG10, DLOG10