Examples might be simplified to improve reading and learning. When the date parameter has a date data type argument, the return value depends on the setting specified by SET DATEFIRST. While using W3Schools, you agree to have read and accepted our, Required. If date is specified as a variable or table column, and the data type for that variable or column does not have the specified datepart, DATENAME will return error 9810. The specific part of the date argument that DATENAME will return. The DAYOFWEEK() function returns the weekday index for a given date (a number from 1 to 7). 7). Note:1=Sunday, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thursday, 6=Friday, 7=Saturday. The return value depends on SET DATEFORMAT if date is a string literal of some formats. DAYOFWEEK(date) 5=Thursday, 6=Friday, 7=Saturday. Use four-digit years to avoid ambiguity issues. In other words, DATENAME does not support the format YDM when the date is passed as a string. DATENAME does not accept user-defined variable equivalents for the datepart arguments. All rights reserved. SQL Server has a couple of inbuilt functions to get the day of week from the given date. SET DATEFORMAT does not change the return value when the date is a column expression of a date or time data type. See Date and Time Data Types and Functions (Transact-SQL) for an overview of all Transact-SQL date and time data types and functions. Substitute a datepart value from the table for the datepart argument in the SELECT statement: SELECT DATENAME(datepart,'2007-10-30 12:15:32.1234567 +05:10'); Azure Synapse Analytics (SQL Data Warehouse) and Parallel Data Warehouse, Date and Time Data Types and Functions (Transact-SQL), Configure the two digit year cutoff Server Configuration Option, Configure the default language Server Configuration Option. To get the name of the day of week, you can use DATENAME function and to get the number of the day of week, you can use DATEPART function.
If the data type of the date argument does not have the specified datepart, DATENAME will return the default for that datepart only if the date argument has a literal . Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Parallel Data Warehouse. Following are valid parameters value that can be passed to DATEPART function. If the datepart argument is TZoffset (tz) and the date argument has no time zone offset, DATEADD returns 0. This function returns a character string representing the specified datepart of the specified date. Using DATENAME function: In this example, variable @t has a time data type. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. Use four-digit years to avoid ambiguity issues. We can use DATENAME () function to get Day/Weekday name from Date in Sql Server, here we need specify datepart parameter of the DATENAME function as weekday or dw both will return the same result. We can use DATENAME, DATEPART functions by passing respective parameters to return the day name of the week, day of the week and month names. SELECT GETDATE () 'Today', DATENAME (weekday,GETDATE ()) 'Day Name' SELECT GetDate () 'Today', DATENAME (dw,GETDATE ()) 'Day Name' This statement has date part arguments for datepart, a time argument for date, and DATENAME returns 1900, January, 1, 1, Monday. Sql server has a date function called DATENAME to get the name of the day or day of week Oracle day name or day of week function Mysql has a similar function called dayname() which is equivalent to datename in Microsoft SQL server See Configure the two digit year cutoff Server Configuration Option for information about two-digit years. The example fails because the date part year is invalid for the time data type: In SQL Server 2019 (15.x), DATENAME implicitly casts string literals as a datetime2 type.
Notice that the same above result can be retrieved by passing abbreviations instead of full datepart parameter value. Syntax. To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation. You must explicitly cast the string to a datetime or smalldatetime type to use the YDM format. Note: 1=Sunday, 2=Monday, 3=Tuesday, 4=Wednesday, This table lists all valid datepart arguments. For example, the default year-month-day for any date data type is 1900-01-01. When date is smalldatetime, DATENAME returns seconds as 00. datepartThe specific part of the date argument that DATENAME will return. The return value depends on the language environment set by using SET LANGUAGE, and by the Configure the default language Server Configuration Option of the login. Sometimes we need to get the day of week in name or number. SELECT DATENAME(WEEKDAY, GETDATE()) as DayName, DATEPART(WEEKDAY, GETDATE()) as DayOfTheWeek, DATENAME(MONTH, GETDATE()) As MonthName. The DAYOFWEEK() function returns the weekday index for a given date (a number from 1 to Return the weekday index for the current system date: If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training.
This table lists all valid datepart arguments.dateAn expression that can resolve to one of the following data types: 1. date 2. datetime 3. datetimeoffset 4. datetime2 5. smalldatetime 6. timeFor date, DATENAME will accept a column expression, expression, string literal, or user-defined variable. This example returns the date parts for the specified date. Following are valid parameters value that can be passed to DATEPART function.
We can use DATENAME, DATEPART functions by passing respective parameters to return the day name of the week, day of the week and month names. © 2020 - TechFunda.com 16102020, SQL Server Table- Create, Read, Update, Delete (CRUD), Convert data type of SQL Server variables, Convert a column value from one data type to another. Example To get the name of the day of week. Above query will give the same result as the previous one.
The date to return the weekday index from. datepart An expression that can resolve to one of the following data types: For date, DATENAME will accept a column expression, expression, string literal, or user-defined variable.
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