# LOG10

## Syntax

```sql
LOG10(X)
```

## Description

Returns the base-10 logarithm of X.

## Examples

```sql
SELECT LOG10(2);
+-------------------+
| LOG10(2)          |
+-------------------+
| 0.301029995663981 |
+-------------------+

SELECT LOG10(100);
+------------+
| LOG10(100) |
+------------+
|          2 |
+------------+

SELECT LOG10(-100);
+-------------+
| LOG10(-100) |
+-------------+
|        NULL |
+-------------+
```

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

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