I have the following two dates :
startDate = '2017-04-04' and endDate = '2017-04-12'
I would like to find the total count of days between these two dates excluding 'Fridays' using SQL Server.
Any Help from the SQL Server Experts will be highly appreciated!! Thanks in Advance!!
You can use DATENAME to check for 'Friday' do this, something like this :
DECLARE #startDate DATETIME
DECLARE #endDate DATETIME
SET #startDate = '2017-04-04'
SET #endDate = '2017-04-12'
Declare #count int
set #count=0
while #startDate < #endDate
Begin
IF DATENAME(dw, #startDate) <> 'Friday'
SET #count = #count + 1
SET #startDate = DateAdd(d, 1, #startDate)
END
select #count
This will result in :
7
just add below clause to your query
select count(*) from table
where startDate >= '2017-01-12' and endDate <= '2017-04-27'
and datename(WEEKDAY,startdate))<>'Friday'
Related
I am trying to generate rolling data for month. However, I am having an issue where the query doesnt generate any data when the month has 31 days.
I am defining my days here:
declare #today datetime
set #today = getdate()
declare #enddate datetime
set #enddate = #today
declare #begindate datetime
set #begindate = dateadd(mm, datediff(m,0,#today),0)
Then I am calling the days in my query using:
PURCHDATE BETWEEN #begindate AND #enddate
I can see my issue where my begin date is first day of the month and end date is today. How can I make this work for 31 day months?
You could do this
WHERE YEAR(PURCHDATE) = YEAR(GETDATE()) AND MONTH(PURCHDATE) = MONTH(GETDATE())
I would recommend:
PURCHDATE >= CONVERT(date, DATEADD(day, 1 - day(getdate()), getdate())) AND
PURCHDATE < CONVERT(date, DATEADD(day, 1, EOMONTH(getdate())))
i show you my logic is getting error only when month is December
declare #startDate datetime
declare #endDate datetime
set #startDate = convert(varchar(2),#month)+'/1/'+ convert(varchar(4),#year)
set #endDate = dateadd(DD,-1,(convert(varchar(2),#month+1)+'/1/'+convert(varchar(4),#year)))
while(#startDate < #endDate+1)
begin
insert into #tempday
select #startDate
set #startDate = dateadd(day, 1, #startDate )
end
please help
Once you have #startdate, use:
set #enddate = dateadd(day,-1,dateadd(month,1,#startdate))
And I don't think you mean plsql...
There are other things you could think about too, such as not using a while-loop. Why not query a table that has plenty of rows (such as sys.all_columns) and use:
insert #tempday
select top (datediff(day,#startdate,#enddate)+1)
dateadd(day,row_number() over (order by (select 1))-1,#startdate)
from sys.all_columns;
In case of December #month+1 will get you 13 which is not a valid month number
I have following records
NAME BIRTHDATE
A 19/09/1990
B 25/09/1992
C 26/09/1993
and current date is 19/09/2014
I want to get the birthday record from current date to next seven days below is my query.
CREATE PROCEDURE [dbo].[Get_Birthday]
as
begin
Declare #CurrentDate date ,#NxtDate date
set #CurrentDate = GETDATE();
set #NxtDate = DATEADD(day,7,getdate())
print #CurrentDate
print #NxtDate
select DocId, DoctorName,DOA,Email from vw_DoctorDetail
where DOA between #CurrentDate and #NxtDate
end
You may try the following
CREATE PROCEDURE [dbo].[Get_Birthday]
as
beginDeclare #CurrentDate date ,#NxtDate date
set #CurrentDate = DATEADD(year,-DATEDIFF(year,'19000101',GETDATE()),GETDATE());
set #NxtDate = DATEADD(day,7,#CurrentDate)
print #CurrentDate
print #NxtDate
select DocId, DoctorName,DOA,Email from vw_DoctorDetail
WHERE DATEADD(year,-DATEDIFF(year,'19000101',DOA),DOA) between #CurrentDate and #NxtDate
Try this
SELECT DocId
,DoctorName
,DOA
,Email
FROM vw_DoctorDetail
WHERE (
DATEPART(DAY, DOA) BETWEEN DATEPART(DAY, GETDATE() + 7)
AND DATEPART(DAY, GETDATE())
)
AND DATEPART(MONTH, DOA) = DATEPART(MONTH, GETDATE())
This will work from sqlserver 2012+
Notice this is using 2000 which is leap year to avoid issues.
SELECT
DocId,
DoctorName,
DOA,
Email
FROM
vw_DoctorDetail
WHERE
datefromparts(2000, month(DOA), day(DOA))
between datefromparts(2000, month(#CurrentDate), day(#CurrentDate)) and
datefromparts(2000, month(#NxtDate), day(#NxtDate))
I'm doing my best to set a date variable so I can compare it later. I would like something that basically says:
If the current day-of-month is less than 11, then date is 10th of LAST month
If the current day-of-month is greater-than-or-equal-to 11, then date is 10th of THIS month
Date is 11/6/2012 expected output:
#PODate = 10/10/2012
Date is 11/16/2012 expected output:
#PODate = 11/10/2012
Currently all I have is this:
DECLARE #PODate as DATETIME
Set #PODate = Convert(varchar(8),GetDate(),1)
Any tips or help would be greatly appreciated. Thank you!!
Trying to keep it as straightforward as possible:
declare #PODate datetime
select #PODate = DATEADD(month,
DATEDIFF(month,'20010110',CURRENT_TIMESTAMP) +
CASE WHEN DATEPART(day,CURRENT_TIMESTAMP) <= 10 THEN -1 ELSE 0 END,
'20010110')
The surrounding DATEADD/DATEDIFF pair are being used to normalize the date to the 10th of the current month. We then use a small CASE expression to subtract a month if the day is less than or equal to the 10th.
Whatever solution you pick, please try to avoid ones that do it as string manipulation. The usual cause of datetime related bugs in SQL is when people treat dates as strings. Keeping the data types appropriately is usually the best way to prevent these issues.
There are, admittedly, 2 strings in my solution, but these are fixed constant strings (all that matters is that they're both for the same year and month, and the second one is for the 10th of the month) and are in an unambiguous format.
Try this: SQL Fiddle
DECLARE
#PODate as DATETIME,
#LastMonth as DateTime,
#strDate as Varchar(50)
set #PODate = '11/16/2012'
set #LastMonth = DATEADD(MONTH, -1, #PODate)
if(DAY(#PODate) < 11)
SET #strDate = CAST(MONTH(#LastMonth) AS VARCHAR)+'/10/'+CAST(YEAR(#LastMonth) AS VARCHAR)
else
SET #strDate = CAST(MONTH(#PODate) AS VARCHAR)+'/10/'+CAST(YEAR(#PODate) AS VARCHAR)
Select CAST(#strDate AS DateTime)
DECLARE #PODate date = '20121116'
SELECT CASE WHEN DATEPART(day, #PODate) < 11 THEN DATEADD(mm, DATEPART(mm, GETDATE()) - DATEPART(mm, #PODate) - 1, DATEADD(day, 10 - DATEPART(day, #PODate), #PODate))
ELSE DATEADD(mm, DATEPART(mm, GETDATE()) - DATEPART(mm, #PODate), DATEADD(day, 10 - DATEPART(day, #PODate), #PODate)) END
Demo on SQLFiddle
DECLARE #currDate DATE = dbo.GetDate()
DECLARE #day INT = day(#currDate)
DECLARE #month INT
DECLARE #year INT
DECLARE #PODate DATE
IF( #day >= 11)
BEGIN
SET #month = month(#currDate)
SET #year = year(#currDate)
END
ELSE BEGIN
SET #month = month(dateadd(m,-1,#currDate))
SET #year = year(dateadd(m,-1,#currDate))
END
SET #PODate = convert(DATE,'10-' + convert(VARCHAR,#month) + '-' + convert(VARCHAR,#year))
PRINT #PODate
if #currDate = '11-jan-2013' , #PODate will be '10-jan-2013', and if #currDate = '07-jan-2013' , #PODate will be '10-Dec-2012'
I want number of working days in between to dates. For example if we have 01-01-2012 and 20-01-2012, i want to get the number of working days in between that two dates using T-SQL.
Since SQL Server has no idea what your company considers working days, the best answer to this problem is likely going to be to use a calendar table. Once you have a table with past and future dates, with a column like IsWorkDay correctly updated, the query is simple:
SELECT [Date] FROM dbo.Calendar
WHERE [Date] >= #start
AND [Date] <= #end
AND IsWorkDay = 1;
DECLARE #fromDate datetime, #toDate datetime
SELECT #fromDate = ' 01-01-2012', #toDate = '20-01-2012'
SELECT (DATEDIFF(day, #fromDate, #toDate) + 1)
- (DATEDIFF(week, #fromDate, #toDate) * 2)
- (CASE WHEN DATENAME(weekday, #fromDate) = 'Sunday' THEN 1 ELSE 0 END)
- (CASE WHEN DATENAME(weekday, #toDate) = 'Saturday' THEN 1 ELSE 0 END)
I liked Aaron Bertrand's suggestion so I wrote this code that can be added to your queries. It creates a table variable between 2 dates that you can then use in your query by joining on the CalendarDate column (just remember to strip out any time information before joining). This is based on the typical American work week of Monday through Friday.
DECLARE #StartDate DATE
DECLARE #EndDate DATE
SET #StartDate = '2013-08-19'
SET #EndDate = '2013-08-26'
DECLARE #BusinessDay TABLE
(
CalendarDate DATETIME,
IsBusinessDay INT
)
DECLARE #Counter DATETIME = #StartDate
WHILE(#Counter <= #EndDate)
BEGIN
INSERT INTO #WorkDays
SELECT #Counter, CASE WHEN DATENAME(WEEKDAY, #Counter) NOT IN ('Saturday', 'Sunday') THEN 1 ELSE 0 END
SET #Counter = DATEADD(DAY, 1, #Counter)
END
SELECT * FROM #BusinessDay
The downside is this has to be recreated for each query that needs it, so if you're doing this often, a fixed table might be a better way to go.
It can be used like this....
SELECT
BusinessDays = SUM(IsBusinessDay)
FROM
#BusinessDay
WHERE
CalendarDate BETWEEN #StartDate AND #EndDate
That will give you the count of business days between the two dates. Like many others have said, this obviously does not take into account any holidays or my birthday.
Based on previous code, I adapted it to exclude the last day (not asked but I needed it).
select (DATEDIFF(dd,#fromDate, #toDate))
- (DATEDIFF(ww,#fromDate, DATEADD(dd,-1,#toDate)) * 2)
- (CASE WHEN DATENAME(dw, #fromDate) = 'Sunday' THEN 1 else 0 end)
- (CASE WHEN DATENAME(dw, #toDate) = 'Sunday' THEN 1 else 0 end)
I removed the holydays by using a table containing those dates
- ( select count(distinct dcsdte)
from calendar_table
where dcsdte between #fromDate
and #toDate )