Week start date and end date using Sql Query
- SELECT DATEADD( DAY , 2 - DATEPART(WEEKDAY, GETDATE()), CAST (GETDATE() AS DATE )) [Week_Start_Date]
- select DATEPART(WEEKDAY, GETDATE())
- Select DATEADD( DAY , 8 - DATEPART(WEEKDAY, GETDATE()), CAST (GETDATE() AS DATE )) [Week_End_Date]
- select DATEPART(WEEKDAY, GETDATE())
Formula: =A2-WEEKDAY(A2,2)+1Note: This formula =A2-WEEKDAY(A2,2)+1 will return Monday as the beginning of week based on the given date.
While, for example, the United States, Canada, Brazil, Japan and other countries consider Sunday as the first day of the week, and while the week begins with Saturday in much of the Middle East, the international ISO 8601 standard and most of Europe has Monday as the first day of the week.
Here is another option. The date 19000107 was Sunday, so can calculate how many 7 days, exactly (remember that integer division does not yield decimals), are between the two dates, multiply that number by 7 and you will get the previos Sunday, add seven days and you will get next Sunday.
You can do this in SQL easily. Use a row generator to make a list of dates. Then filter these by applying to_char() to them. The format mask 'fmday' will convert these to days.
Just run these SQL queries one by one to get the specific element of your current date/time:
- Current year: SELECT date_part('year', (SELECT current_timestamp));
- Current month: SELECT date_part('month', (SELECT current_timestamp));
- Current day: SELECT date_part('day', (SELECT current_timestamp));
To get the number of days of a specified month, you follow these steps:
- First, use the EOMONTH() function to get the last day of the month.
- Then, pass the last day of the month to the DAY() function.
If you use SQL Server, you can use the DAY() or DATEPART() function instead to extract the day of the month from a date. Besides providing the EXTRACT() function, MySQL supports the DAY() function to return the day of the month from a date.
How to get different date formats in SQL Server
- Use the SELECT statement with CONVERT function and date format option for the date values needed.
- To get YYYY-MM-DD use this T-SQL syntax SELECT CONVERT(varchar, getdate(), 23)
- To get MM/DD/YY use this T-SQL syntax SELECT CONVERT(varchar, getdate(), 1)
MySQL SYSDATE() FunctionThe SYSDATE() function returns the current date and time.
A trigger is a special type of stored procedure that automatically runs when an event occurs in the database server. DML triggers run when a user tries to modify data through a data manipulation language (DML) event. DML events are INSERT, UPDATE, or DELETE statements on a table or view.
Using DATEADD Function and Examples
- Add 30 days to a date SELECT DATEADD(DD,30,@Date)
- Add 3 hours to a date SELECT DATEADD(HOUR,-3,@Date)
- Subtract 90 minutes from date SELECT DATEADD(MINUTE,-90,@Date)
- Check out the chart to get a list of all options.
week-number.netThe current Week Number is WN 33.
SELECT DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 0),
- 'Monday of Current Week'
- 'First Monday of Current Month'
- 'Start of Day'
- 'End of Day'
There are 53 weeks in 2020.
Here's the SQL query to get records from last 7 days in MySQL. In the above query we select those records where order_date falls after a past interval of 7 days. We use system function now() to get the latest datetime value, and INTERVAL clause to calculate a date 7 days in the past.
Week 33 is from Monday, August 16, 2021 until (and including) Sunday, August 22, 2021. The highest week number in a year is either 52 or 53. 2021 has 52 weeks. ISO 8601 is not the only week numbering system in the world, other systems use weeks starting on Sunday (US) or Saturday (Islamic).
Get week number from date
- Generic formula. =WEEKNUM(date)
- To get the week number from a date, you can use the WEEKNUM function. In the example shown, the formula in C5, copied down, is:
- The WEEKNUM function takes a date and returns a week number (1-54) that corresponds to the week of year.
- Good links.
The easiest solution is to go back the number of days based on today's date. For example, if today's day(0) is Sunday, you can go back 6 days to find the previous Monday. If Today is Monday, you can go back 7 days.
Finding previous Saturday
- select @CalendarDate = '11/04/2011' -- to return 10/29/2011 --previous Sat.
- -- to return 11/05/2011 today, as a Sat. select @CalendarDate = '11/06/2011'
- select @CalendarDate = '11/07/2011' -- to return 11/05/2011 two days ago, Sat.
How to get Last Thursday Date
- declare @date datetime,
- @day int.
- declare @startdate datetime,
- @enddate datetime.
- --set @date = getdate()
- set @day = datepart(day,getDate())-1.
- set @startdate = DATEADD(day,-30,getDate())
- set @enddate = getdate()
Use the DATENAME() function and specify the datepart as weekday . select ID, Name, Salary, Date from dbo. yourTable where datename(weekday, Date) in ('Saturday', 'Sunday');
