MONTHNAME¶

Syntax¶

MONTHNAME( <date_or_timestamp_expr> )

Arguments¶

date_or_timestamp_expr

A date or a timestamp, or an expression that can be evaluated to a date or a timestamp.

Returns¶

This function returns a value of type VARCHAR.

Usage notes¶

To return the full month name instead of the three-letter month name, you can use the TO_CHAR function with the TO_DATE or TO_TIMESTAMP function. The following example uses the TO_CHAR and TO_DATE functions to return the full month name for the date 2025-01-01:

SELECT TO_CHAR(TO_DATE('2025-01-01'), 'MMMM') AS full_month_name;

+-----------------+
| FULL_MONTH_NAME |
|-----------------|
| January         |
+-----------------+

Examples¶

The following examples use the MONTHNAME function.

Return the three-letter month name of a date:

SELECT MONTHNAME(TO_DATE('2025-01-01')) AS month;

+-------+
| MONTH |
|-------|
| Jan   |
+-------+

Return the three-letter month name of a timestamp:

SELECT MONTHNAME(TO_TIMESTAMP('2025-04-03 10:00')) AS month;

+-------+
| MONTH |
|-------|
| Apr   |
+-------+

Return the three-letter month name of DATE values in a column.

First, create a table with a DATE column and insert various DATE values:

CREATE OR REPLACE TABLE monthname_function_demo (d DATE);

INSERT INTO monthname_function_demo (d) VALUES
  ('2024-01-01'::DATE),
  ('2024-02-02'::DATE),
  ('2024-03-03'::DATE),
  ('2024-04-04'::DATE),
  ('2024-05-05'::DATE),
  ('2024-06-06'::DATE),
  ('2024-07-07'::DATE),
  ('2024-08-08'::DATE),
  ('2024-09-09'::DATE),
  ('2024-10-10'::DATE),
  ('2024-11-11'::DATE),
  ('2024-12-12'::DATE);

Use the MONTHNAME function in a query to return the three-letter month name of each value in the d column:

SELECT d,
       MONTHNAME(d) AS month
  FROM monthname_function_demo;

+------------+-------+
| D          | MONTH |
|------------+-------|
| 2024-01-01 | Jan   |
| 2024-02-02 | Feb   |
| 2024-03-03 | Mar   |
| 2024-04-04 | Apr   |
| 2024-05-05 | May   |
| 2024-06-06 | Jun   |
| 2024-07-07 | Jul   |
| 2024-08-08 | Aug   |
| 2024-09-09 | Sep   |
| 2024-10-10 | Oct   |
| 2024-11-11 | Nov   |
| 2024-12-12 | Dec   |
+------------+-------+