In this article, I will try to give information about finding the first and last days of the year, month and week in SQL Server.

In SQL Server, in some cases you may want to find the first and last days of the year, month, and week.

You can easily do this using the code below.

DECLARE @tarih DATETIME = GETDATE();
SELECT 'Last Day of the Previous Month' Description,
       CONVERT(VARCHAR(10), DATEADD(dd, - (DAY(@tarih)), @tarih), 112) Date
UNION ALL
SELECT 'First Day of the Month',
       CONVERT(VARCHAR(10), DATEADD(dd, - (DAY(@tarih) - 1), @tarih), 112) AS Date_Value
UNION ALL
SELECT 'Today's date',
       CONVERT(VARCHAR(10), @tarih, 112) AS Date_Value
UNION ALL
SELECT 'Last Day of the Month',
       CONVERT(VARCHAR(10), DATEADD(dd, - (DAY(DATEADD(mm, 1, @tarih))), DATEADD(mm, 1, @tarih)), 112)
UNION ALL
SELECT 'First Day of Next Month',
       CONVERT(VARCHAR(10), DATEADD(dd, - (DAY(DATEADD(mm, 1, @tarih)) - 1), DATEADD(mm, 1, @tarih)), 112)
UNION ALL
SELECT 'The first day of the week',
       DATEADD(ww, DATEDIFF(ww, 0, GETDATE()), 0)
UNION ALL
SELECT 'First Day of Next Week',
       DATEADD(ww, DATEDIFF(ww, 0, GETDATE()) + 1, 0)
UNION ALL
SELECT 'First Day of the Year',
       DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0)
UNION ALL
SELECT 'Last Day of the Year',
       DATEADD(dd, -1, DATEADD(yy, 0, DATEADD(yy, DATEDIFF(yy, 0, GETDATE()) + 1, 0)));

When you run the above code, you will see a result similar to the one below.

As you can see, we have seen the first and last days of the year, month and week.

Good luck to everyone in business and life.

The post First and Last Days of Year, Month, and Week in SQL Server first appeared on MSSQL Query.

In this article, I will give you information about how to assign the first day of the week information in SQL Server.

You may want to change the first day of the week in SQL Server.

The DATEFIRST statement sets the first day of the week for the session to a number from 1 through 7.

In SQL Server the values for the days of the week are the following:

1 – Monday
2 – Tuesday
3 – Wednesday
4 – Thursday
5 – Friday
6 – Saturday
7 – Sunday

For example, for us_english language setting your session’s DATEFIRST setting has a default value 7 (it means that Sunday is the first day of the week), and for German it is 1 (Monday is the first day of the week)

You can also do this using the code below.

SET LANGUAGE us_english;
SELECT @@DATEFIRST;

SET LANGUAGE German;
SELECT @@DATEFIRST;

When you run the code you will get the following result.

Good luck to everyone in business and life.

The post Set First Day of the Week in SQL Server first appeared on MSSQL Query.