SQL MONTH scalar function in DB2 for i SQL

SQL MONTH scalar function in DB2 for i SQL

MONTH

The MONTH function returns the month part of a value.

Syntax

MONTH(expression)

The argument should be an expression that returns either date, timestamp, character string, graphic string, or any numeric data type. The return value is the large integer. Also, the result can be NULL if the argument value is null.

Example#1:

If the argument is a string, the result is the month part that is represented by the string.

SELECT  MONTH('2024-03-16') FROM sysibm.sysdummy1

        MONTH
            3

Or

SELECT MONTH('2024-03-16-15.10.40.456465') FROM sysibm.sysdummy1

        MONTH
            3

Example#2:

The result can be null if the argument is null.

Create a table having date field and that allows null value to be inserted.

CREATE TABLE QTEMP/DT (DATE1 DATE )

INSERT INTO QTEMP/DT VALUES(null)

Output

DATE1
-    

select MONTH(date1) from qtemp/dt

MONTH ( DATE1 )
              -

Returns NULL value as date1 field has NULL value in table qtemp/dt.

Example#3:

If the argument is a timestamp, the result is the month part of the timestamp.

SELECT  MONTH(current timestamp) FROM sysibm.sysdummy1

Or

SELECT  MONTH(current_timestamp) FROM sysibm.sysdummy1

        MONTH
            3

Example#4:

Argument value is the character string '2024076', which represents a date in the format yyyynnn, where yyyy is the year, and nnn is the day of the year.

SELECT   MONTH('2024076') FROM sysibm.sysdummy1

MONTH ( '2024076' )
               3