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SQL DATENAME

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SQL DATENAME is one of the Date function is used to extract or display specified date part from the existing date. This function always return String data. For example, If you want to extract month name or day name (sunday .. saturday) from the existing Date, you can use this SQL Datename function.

SQL DATENAME Syntax

DATENAME (Datepart, Date)

Datepart: It is the part of a given date which we are going to display as output. Following table will display the list of available datepart argument in SQL Server

Datepart Abbreviations Description
year yy,yyyy Display the year value from the given date
quarter qq, q Display the quarter number from the given date
month mm, m Display the month name from the given date
dayofyear dy, y Display the day of a year number from the given date (1 to 365)
day dd, d Display the day number from the given date (1 to 31)
week wk, ww Display the Week number from the given date
weekday dw, w Display the Week days name from the given date (Sunday to Saturday)
hour hh Display the Hour value present in the given date
minute mi, n Display the Minute Value present in the given date
second ss, s This will display the Seconds Value present in the given date
millisecond ms This will display the Milliseconds Value present in the given date
microsecond mcs This will display the microsecond Value present in the given date
nanosecond ns This will display the Nanoseconds Value present in the given date
TZOffset tz This will display the Time Zone Offset Value present in the given date
ISO_WEEK isowk, isoww This will display the Iso Week Number from the given date

Date: Please specify the valid date as second argument. It can be column, expression or any variable.

SQL DATENAME Function Example 1

In this example we are going to declare a variable of datetime2 data type. Let us assign valid date to that variable and perform all the available datepart operations in SQL

SQL CODE

DECLARE @Date datetime2 = '2015-08-25 14:24:04.1234567'
SELECT 'YEAR' AS [SQL DATENAME], DATENAME(year, @Date) AS [Values] 
UNION ALL
SELECT 'QUARTER', DATENAME(quarter, @Date) 
UNION ALL
SELECT 'MONTH', DATENAME(month, @Date) 
UNION ALL
SELECT 'DAYOFYEAR', DATENAME(dayofyear, @Date) 
UNION ALL
SELECT 'DAY', DATENAME(day, @Date) 
UNION ALL
SELECT 'WEEK', DATENAME(week, @Date) 
UNION ALL
SELECT 'WEEKDAY', DATENAME(weekday, @Date) 
UNION ALL
SELECT 'HOUR', DATENAME (hour, @Date) 
UNION ALL
SELECT 'MINUTE', DATENAME(minute, @Date) 
UNION ALL
SELECT 'SECOND', DATENAME(second, @Date) 
UNION ALL
SELECT 'MILLISECOND', DATENAME(millisecond, @Date) 
UNION ALL
SELECT 'MICROSECOND', DATENAME(microsecond, @Date) 
UNION ALL
SELECT 'NANOSECOND',DATENAME(nanosecond, @Date)
UNION ALL
SELECT 'ISO WEEK',DATENAME(ISO_WEEK, @Date)

OUTPUT

SQL DATENAME 1

ANALYSIS

We declared one variable and assigned the date and time to that variable

DECLARE @Date datetime2 = '2015-08-25 14:24:04.1234567'

We asked the SQL Datename function to display the year value from the given date

SELECT 'YEAR', DATENAME(year, @Date)

We asked the SQL Datename function to display the Month name from the given date

SELECT 'MONTH', DATENAME(month, @Date)

SQL DATENAME Function Example 2

In this example, we are going to use one of the custom SQL table to perform SQL Datename operations on Hire Date column.

SQL CODE

SELECT [FirstName] + ' '+ [LastName] AS [Full Name]
      ,[Occupation]
      ,[YearlyIncome]
      ,[HireDate]
      ,DATENAME(year, [HireDate]) AS [YEAR]
      ,DATENAME(quarter, [HireDate]) AS [QUARTER]
      ,DATENAME(month, [HireDate]) AS [MONTH]
      ,DATENAME(day, [HireDate]) AS [DAY]
      ,DATENAME(dayofyear, [HireDate]) AS [TOTAL DAYS]
FROM [SQL Tutorial].[dbo].[Employee]

OUTPUT

SQL DATENAME 2

ANALYSIS

SQL Datename function in the below statement will display the Year value from the Hire Date Column

DATENAME(year, [HireDate]) AS [YEAR]

Below statement will display the Quarter value from the Hire Date Column

DATENAME(quarter, [HireDate]) AS [YEAR]

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