Is there a way I can create a list of weeks (param):w1,W2,... based on another param list (years), so the first list is for the years and the second is for the weeks corresponding to the chosen year.
For example if I choose 2017 from my first list my second list (weeks) should be updated with labels W1,W2,... & the values are the corresponding dates in the given year.
Try this ...
declare #year as int
declare #startdate as datetime
declare #wk as int
declare #endwk as datetime
declare #tbl as table (
tbl_wk int,
tbl_Monday datetime
)
set #endwk= (SELECT DATEPART(wk, GETDATE())+1)
set #wk = 1
set #year = '2017'
set #startdate = CAST (cast(#year as varchar(4))+ '/01/01 00:00:00' as datetime)
while (#wk < #endwk)
begin
insert into #tbl (tbl_wk,tbl_Monday)
select #wk,DATEADD(wk, DATEDIFF(wk,0,#startdate), 0) as monday--MondayOfCurrentWeek,
set #wk = #wk+1
set #startdate = #startdate+7
end
select * from #tbl
You could adapt this to create a table in SQL and then reference this in your report.
Note: You could include Year in an outer loop if you need dates from more than one year
declare #year as int
declare #startdate as datetime
declare #wk as int
declare #tbl as table (
tbl_wk int,
tbl_Monday datetime
)
set #wk = 1
set #year = '2017'
set #startdate = CAST (cast(#year as varchar(4))+ '/01/01 00:00:00' as datetime)
while (#wk < 53)
begin
insert into #tbl (tbl_wk,tbl_Monday)
select #wk,DATEADD(wk, DATEDIFF(wk,0,#startdate), 0) as monday--MondayOfCurrentWeek,
set #wk = #wk+1
set #startdate = #startdate+7
end
select * from #tbl
Related
My table has a column date_period which stores Date in the format YYYYMM. I want to write a query which inserts date in date_period column in the format YYYYMM if there is no entry till current month.
For Example: the date period has entry till October 2015 so it will contain the value 201510. Now I want to check and insert data till current month if it is not present. So the entries will be now 201511, 201512, 201601
How can I achieve this?
try this way, may it will help you
DECLARE #v DATE= getdate()
declare #Currentdate varchar(10)
set #Currentdate=CONVERT(VARCHAR(10), #v, 112)
/*#Currentdate string is in format '20160129'*/
IF NOT EXISTS(select * from Table1 where date_period=LEFT(#Currentdate,6))
begin
insert into Table1(date_period)values(LEFT(#Currentdate,6))
end
Try this
i think this will be the complete solution for your problem
declare #monthcount int
DECLARE #v DATE= getdate()
declare #lastsavedMonth varchar(20)= (select MAX(date_period) from Table1)
declare #Lastsaveddate varchar(20)= #lastsavedMonth+''+RIGHT(CONVERT(VARCHAR, 100 + DATEPART(d,#v)), 2)
set #monthcount=datediff(month,#Lastsaveddate,CONVERT(VARCHAR(10), #v, 112))
while #monthcount>=0
begin
declare #dateofsavingmonth varchar(20)
if(#monthcount=0)
begin
set #dateofsavingmonth=CONVERT(VARCHAR(10),#v,112)
end
else
begin
set #dateofsavingmonth=CONVERT(VARCHAR(10), dateadd(month,-#monthcount,#v),112)
end
IF NOT EXISTS(select * from Table1 where date_period=LEFT(#dateofsavingmonth,6))
begin
insert into Table1(date_period)values(LEFT(#dateofsavingmonth,6))
end
set #monthcount =#monthcount-1
end
In SQL Server 2008 I have a startdate and an enddate being passed to my procedure. I need to check each date in the range to see if it exists in my validworkday table. I have no clue where to begin on this, but this is how start/end day are set-up
Declare #startdate date, #enddate date
Set #startdate = '01/01/2015'
Set #enddate = '04/16/2015'
Now how can I iterate each date in this span to see if validworkday = true for it? The check I would need to run is like so (checking each date)
Select isvalidworkday
from validworkdays
where date = '01/01/2015'
Select isvalidworkday
from validworkdays
where date = '01/02/2015'
This is syntax that I found from #Incidently years ago (I don't remember where that original post is, but hopefully this will be enough to give the credit), that I still use today. All I did was slightly tweak his syntax to insert the data into a temp table and add a cursor to iterate each individual date.
DECLARE #DateFrom smalldatetime, #DateTo smalldatetime, #firstdate date;
SET #DateFrom='20000101';
SET #DateTo='20081231';
-------------------------------
WITH T(date)
AS
(
SELECT #DateFrom
UNION ALL
SELECT DateAdd(day,1,T.date)
FROM T
WHERE T.date < #DateTo
)
SELECT date
INTO #AllDates
FROM T OPTION (MAXRECURSION 32767);
Declare c1 Cursor For
Select date
FROM #AllDates
Open c1
Fetch Next From c1 Into #firstdate
While ##FETCH_STATUS = 0
Begin
--Do whatever processing you need here
Fetch Next From c1 Into #firstdate
End
Close c1
Deallocate c1
Code should only live in one place and not be rewritten. Create functions (once) like GetAllIntsBetween(), GetAllMonths(), GetAllDates(), etc. Then used them like:
DECLARE #startdate date = '01/01/2015', #enddate date = '04/16/2015'
SELECT allDates.TheDate,
isnull(v.isvalidworkday, false) AS isvalidworkday
FROM dbo.GetAllDates(#startdate, #enddate) AS allDates
LEFT JOIN validworkdays AS v
ON allDates.TheDate = v.MyDate
The GetAllDates() would be:
CREATE FUNCTION dbo.GetAllDates(#Start DATETIME, #End DATETIME)
RETURNS
#AllDates TABLE
(
TheDate DATETIME
)
AS
BEGIN
IF #Start > #End
BEGIN
DECLARE #Temp DATETIME
SET #Temp = #Start
SET #Start = #End
SET #End = #Temp
END
WHILE #Start <= #End
BEGIN
INSERT INTO #AllDates
VALUES(#Start)
SET #Start = DATEADD(DAY, 1, #Start)
END
RETURN
END
(note: can change DATETIME to DATE)
I have table with date ranges, like this:
DATE DATE2
14.03.2013 17.03.2013
13.04.2013 02.05.2013
I have to create a procedure, that returns day count that is equal to two date ranges, one which is in the table and another one.
Forexample, I have date range in the table like this 14.03.2013 - 17.03.2013 and another one, which is declared in procedure like this 02.03.2013 - 16.03.2013, so in this case day count would be 3, because, both date ranges have dates between 14.03.2013 and 16.03.2013.
suppose your table is called daterange and you have parameters defined #param1 and param2 in your procedure then something on these lines should work:
set #param1 := cast('2013-03-14' as date);
set #param2 := cast('2013-03-16' as date);
select
datediff(least(date2,#param2),#param1)+1
from daterange where #param1 between date1 and date2
See example in sqlfiddle
You should be able to adapt this T-SQL function to MySQL
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[fu_RPT_OverlappingDateRangesDays]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[fu_RPT_OverlappingDateRangesDays]
GO
-- ======================================================================================================================
-- Author: Stefan Steiger
-- ALTER date: 11.06.2015
-- Alter date: 11.06.2015
-- Description: Calculate the number of overlapping days in two date-ranges
-- http://stackoverflow.com/questions/20836429/how-to-gets-the-number-of-overlapping-days-between-2-ranges
-- ======================================================================================================================
-- DECLARE #firstStart datetime
-- DECLARE #firstEnd datetime
-- DECLARE #secondStart datetime
-- DECLARE #secondEnd datetime
-- SET #firstStart = '01.01.2015'
-- SET #firstEnd = '31.01.2015'
-- SET #secondStart = '15.01.2014'
-- SET #secondEnd = '15.02.2015'
-- SELECT dbo.fu_RPT_OverlappingDateRangesDays( #firstStart, #firstEnd, #secondStart, #secondEnd )
CREATE FUNCTION [dbo].[fu_RPT_OverlappingDateRangesDays]
(
#firstStart datetime
,#firstEnd datetime
,#secondStart datetime
,#secondEnd datetime
)
RETURNS integer
AS
BEGIN
DECLARE #maxStart datetime
DECLARE #minEnd datetime
DECLARE #interval int
IF #firstStart IS NULL OR #firstEnd IS NULL OR #secondStart IS NULL OR #secondEnd IS NULL
-- RETURN 0
RETURN NULL
IF #firstEnd < #firstStart
RETURN 0
IF #secondEnd < #secondStart
RETURN 0
SET #maxStart = #secondStart
SET #minEnd = #secondEnd
IF #firstStart > #secondStart
SET #maxStart = #firstStart
IF #firstEnd < #secondEnd
SET #minEnd = #firstEnd
-- PRINT #maxStart
-- PRINT #minEnd
--SET #interval = DATEDIFF(DAY, #maxStart, #minEnd) + 1
SET #interval = {fn timestampdiff(SQL_TSI_DAY, #maxStart, #minEnd)} + 1
IF #interval < 0
SET #interval = 0
-- PRINT #interval
RETURN #interval
END
GO
I think I'm going crazy here.
I am trying to do a SP on SQL Server 2005 which takes a date, looks it up in another table and assigns a period number and week number (for financial calendar purposes).
The output needs to hold the date as a string, rather than datetime.
I simply CANNOT get the date to show without the time behind it.
I have tried a couple of methods:
select cast(floor(cast(#CalcDate as float)) as datetime)
I have made a function which converts it into a string and puts it back out again:
CREATE FUNCTION dbo.DateToVarchar (#DateIn datetime)
RETURNS varchar(10)
AS
BEGIN
declare #DD [varchar] (2)
declare #MM [varchar] (2)
declare #YYYY [varchar] (4)
declare #DateOut [varchar] (10)
declare #DDLen [int]
declare #MMLen [int]
set #DD = datepart(dd,#DateIn)
set #DDLen = len(#DD)
set #DD = (case when #DDLen < 2 then '0' + #DD else #DD end)
set #MM = datepart(mm,#DateIn)
set #MMLen = len(#MM)
set #MM = (case when #MMLen < 2 then '0' + #MM else #MM end)
set #YYYY = datepart(yyyy,#DateIn)
set #DateOut = #YYYY + '-' + #MM + '-' + #DD
return #DateOut
END
When I run the above function outside of the SP I get the date back just fine. When I run it through the SP it comes back as 2012-12-30 00:00:00.000
The variable #CalcDate is declared as a varchar(10)
Any ideas?
Thanks in advance
EDIT
Here is the body of the SP so far:
declare #StartDate [datetime]
, #EndDate [Datetime]
, #CalcDate [datetime] --This number will change in the WHILE loop to reflect the increment of days
, #Week [varchar]
, #Period [varchar]
, #i [int]
, #Year [int]
, #CalcDay [int]
, #CalcMonth [int]
, #CalcYear [int]
, #ConcatDate [char] (10)
set #StartDate = '2012-12-30'
set #EndDate = '2013-01-28'
set #Year = 2013
set #i = -1
-- Going to do a while loop here and instead of Week number and Period Number I'm going to do some calculations
set #Week = (Select WeekNum from aaGreensPeriodListTest Where PeriodNum = 1 and WeekNum = 1)
set #Period = (Select PeriodNum from aaGreensPeriodListTest Where PeriodNum = 1 and WeekNum = 1)
set #CalcDate = #StartDate + #i
set #CalcMonth = datepart(mm,#calcdate)
insert into aaGreensPeriodTest(RealDate,GreensYear,GreensPeriod,GreensWeek)
values (#CalcDate,#Year,#Period,#Week)
select #CalcDate as CalcDate, #CalcMonth as CalcMonth
SQL Server 2005 does not support date type without time part.
If your need to get date as a string you can use convert function. For example:
declare #date datetime;
set #date = getdate();
select convert(varchar, #date, 101) -- that will return date in ‘mm/dd/yyyy’ format
If you need a datetime variable without time part for some calculations, you can use an expression below:
declare #date datetime;
set #date = getdate();
select dateadd(dd, datediff(dd, 0, #date), 0)
As per http://msdn.microsoft.com/en-ca/library/ms187928.aspx, you cannot cast float->date directly. It's simply not supporte. But you can cast a datetime->date, so you'll have to double-cast. Or given your example, triple-cast:
CAST(CAST(CAST(#CalcDate AS float) AS datetime) AS date)
Here is a snippet of what I have:
select something from myTable
where curentFlag = 'Y'
and
case when #Year2 is not NULL then
AYEAR >= #Year AND AYEAR <= #Year2
else
AYEAR= isnull(#Year ,AYEAR)
end
ADATE = ISNULL(#Date, ADATE)
But this yields:
Incorrect syntax near '>'.
Incorrect syntax near 'ADATE'.
The user should be able to search by a year (equals to) or a year range. So I'm either passing in just #YEAR or both #YEAR and #YEAR2. So let's say my data set:
DECLARE #y TABLE(AYEAR INT);
INSERT #y VALUES(2008),(2010),(2010);
Now I have these variables:
DECLARE #YEAR INT, #YEAR2 INT;
If I pass in #YEAR = 2008 I should get 1 result.
If I pass in #YEAR = 2010 I should get 2 results.
If I pass in #YEAR = 2008 and #YEAR2 = 2010 I should get all 3 results.
CASE is an expression that returns a single value. It cannot be used for control of flow logic.
If you are sure that #Year will always be populated and #Year2 will only sometimes be populated, than this much simpler logic should work:
WHERE CURRENTFLAG = 'Y'
AND AYEAR BETWEEN #Year AND COALESCE(#Year2, #Year)
AND ADATE = COALESCE(#Date, ADATE);
You can try it with a very simple example:
DECLARE #y TABLE(AYEAR INT);
INSERT #y VALUES(2008),(2010),(2010);
DECLARE #YEAR INT = 2008, #YEAR2 INT = 2010;
--DECLARE #YEAR INT = 2008, #YEAR2 INT = NULL;
--DECLARE #YEAR INT = 2010, #YEAR2 INT = NULL;
SELECT AYEAR FROM #y
WHERE AYEAR BETWEEN #YEAR AND COALESCE(#YEAR2, #YEAR);
where CURRENTFLAG = 'Y'
case when #Year2 is not NULL then --after THEN should be statement or BEGIN block not AND
and AYEAR >= #Year AND AYEAR <= #Year2
else
AND AYEAR= isnull(#Year ,AYEAR) -- here also
end
and ADATE = ISNULL(#Date, ADATE)