MONTH

Description

The MONTH function extracts the month value from a datetime value. The return value ranges from 1 to 12, representing the 12 months of a year. This function supports processing DATE and DATETIME types.

This function behaves the same as MySQL's month function.

Syntax

MONTH(`<date_or_time_expr>`)

Parameters

Parameter	Description
<date_or_time_expr>	The input datetime value. Supports date/datetime types. For specific datetime and date formats, see datetime conversion and date conversion.

Return Value

Returns a value of type TINYINT, representing the month value:

• Range: 1 to 12
• 1 represents January, 12 represents December
• If the input is NULL, returns NULL

Examples

-- Extract month from DATE type
SELECT MONTH('1987-01-01') AS result;
+--------+
| result |
+--------+
|      1 |
+--------+

-- Extract month from DATETIME type
SELECT MONTH('2023-07-13 22:28:18') AS result;
+--------+
| result |
+--------+
|      7 |
+--------+

-- Extract month from DATETIME with fractional seconds
SELECT MONTH('2023-12-05 10:15:30.456789') AS result;
+--------+
| result |
+--------+
|     12 |
+--------+

-- Returns NULL when input is NULL
SELECT MONTH(NULL) AS result;
+--------+
| result |
+--------+
| NULL   |
+--------+