DAY (Transact-SQL)
Returns an integer representing the day (day of the month) of the specified date.
For an overview of all Transact-SQL date and time data types and functions, see Date and Time Data Types and Functions (Transact-SQL).
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Transact-SQL Syntax Conventions
Syntax
DAY ( date )
Arguments
- date
Is an expression that can be resolved to a time, date, smalldatetime, datetime, datetime2, or datetimeoffset value. The date argument can be an expression, column expression, user-defined variable or string literal.
Return Type
int
Return Value
DAY returns the same value as DATEPART (day, date).
If date contains only a time part, the return value is 1, the base day.
Examples
The following statement returns 30. This is the number of the day.
SELECT DAY('2007-04-30T01:01:01.1234567 -07:00');
The following statement returns 1900, 1, 1. The argument for date is the number 0. SQL Server interprets 0 as January 1, 1900.
SELECT YEAR(0), MONTH(0), DAY(0);