DAY() Function in SQL Server

DAY() function : This function in SQL Server is used to return the day of the month i.e, from 1st to 31st for date stated. Features :

• This function is used to find the day of the month for a date specified.
• This function comes under Date Functions.
• This function accepts only one parameter i.e, date.
• This function can also include time with the stated date.

Syntax :

DAY(date)

Parameter : This method accepts only one parameter as given below as follows.

• date -Specified date from which the day of the month is to be returned.

Returns : It returns the day of the month i.e, from 1st to 31st for a date specified. Example-1 : Using DAY() function and getting the day of the month from the date specified.

SELECT DAY('2020/01/02');

Output :

2

Example-2 : Using DAY() function with a variable and getting the day of the month from the date specified.

DECLARE @date VARCHAR(50);
SET @date = '2020/01/05';
SELECT DAY(@date);

Output :

5

Example-3 : Using DAY() function with date as parameter which includes time as well.

SELECT DAY('2018/11/22 07:44');

Output :

22

Example-4 : Using DAY() function with a variable and a date as parameter which includes time as well.

DECLARE @date VARCHAR(50);
SET @date = '2020/11/30 23:59';
SELECT DAY(@date);

Output :

30

Application : This function is used to find the day of the month from the date specified.