Skip Navigation Links
Home
Functions
Tips & Tricks
SQL Server 2005
SQL Server 2008
SQL Server 2012
FAQ
Forums
Practice Test
Bookstore
Tip of the Day : Last Day of the Month Function (EOMONTH)
Welcome to SQL Server Helper!!!

This site is intended for those who are beginning to use SQL Server as part of their day-to-day activities.  You will find in this site a collection of useful functions, triggers, stored procedures and tips and tricks related to SQL Server.

Should you have any comments or questions regarding this site or if you want to ask SQL Server-related questions, e-mail us here.

We hope we are able to help and we are glad to help!!!

 
SQL Server Tip of the Day - July 28, 2014
Last Day of the Month Function (EOMONTH)
SQL Server 2012 introduces a new date function called EOMONTH which returns the last day of the month that contains the specified date, with an optional offset.

EOMONTH ( <start_date> [, <month_to_add> ] )
The <start_date> argument is a date expression specifying the date for which to return the last day of the month.  The optional argument <month_to_add> is an integer expression specifying the number of months to add to <start_date>.  If the <month_to_add> is specified, then the EOMONTH date function adds the specified number of months to <start_date>, and then returns the last day of the month for the resulting date.  If this addition of the <month_to_add> to the <start_date> overflows the valid range of dates, then an error is raised.

From SQL Server 2008 R2, SQL Server 2008 and below (that is, SQL Server 2005 and SQL Server 2000), this function can easily be replicated using the following statement:

SELECT DATEADD(MM, DATEDIFF(MM, -1, GETDATE()), 0) - 1 AS [LastDayOfMonth]
Simply replace the GETDATE() function in this statement with any  <start_date> value and it will return the last day of the month that contains that specified date.  As to including the <months_to_add> argument, the statement can be modified as follows:

SELECT DATEADD(MM, DATEDIFF(MM, -1, GETDATE()) + <months_to_add>, 0) - 1 AS [ResultDate]
Using this statement, to get the last day of the previous month and the last day of the following month, the <month_to_add> will be replace by -1 and 1 respectively:
SELECT DATEADD(MM, DATEDIFF(MM, -1, GETDATE()) - 1, 0) - 1 AS [LastDayOfPreviousMonth]
SELECT DATEADD(MM, DATEDIFF(MM, -1, GETDATE()) + 1, 0) - 1 AS [LastDayOfFollowingMonth]
 
SQL Server 2012
What's New in SQL Server 2012
SQL Server 2012 Articles
 
SQL Server 2008
What's New in SQL Server 2008

A collection of articles related to what's new with SQL Server 2008:

SQL Server 2008 Articles

A collection of articles related to SQL Server 2008:

 
User-Defined Functions
Date Functions

A collection of useful user-defined functions that deal with dates.

String Functions

A collection of useful user-defined functions that deal with strings (varchar/char/nvarchar/nchar).

Tree Functions

A collection of useful user-defined functions that deal with tree or hierarchical design structures.

Table-Valued Functions
A collection of useful table-valued user-defined functions that can be used to join with other tables.
SQL Server Built-in Functions
A reference to all built-in functions available within SQL Server grouped into categories.
 
Tips and Tricks

A collection of useful SQL Server-related tips and tricks:

SQL Server Error Messages

A list of SQL Server error messages and for certain error messages, discusses ways on how to solve the error or work around them:

 
Frequently Asked Questions
SQL Server

A collection of frequently asked questions about SQL Server grouped by categories:

SQL Server 2005

A collection of frequently asked questions about SQL Server 2005 grouped by categories: