I'm trying to increase the time between dates by a set amount. For example, I want to add two months to the time between date 1,2 and 3. I'm having trouble incrementing my 'date counter'...
DECLARE #monthDiff int
SET #monthDiff = 1;
UPDATE [Table1]
SET [Date] = DATEADD(MONTH, (SET #monthDiff = #monthDiff + 1), [Date])
WHERE [ID] IN
(
SELECT [ID]
FROM [Table2]
WHERE [Description] = 'HE'
);
An example might help...
Original dates:
01/04/1984
01/05/1984
01/06/1984
New dates:
01/04/1984
01/06/1984
01/08/1984
Any ideas?
I'm using SQLServer 2005.
Thanks.
;WITH cte AS
(
SELECT t1.ID,
t1.[Date],
ROW_NUMBER() OVER (PARTITION BY t1.ID ORDER BY [Date]) AS RN
FROM Table1 t1
JOIN Table2 t2
ON t1.ID = t2.ID
WHERE t2.[Description] = 'HE'
)
UPDATE CTE
SET [Date] = DATEADD(MONTH, RN-1, [Date])
this should work, although only if each original date in your table is unique. I've called the column mydate because I don't think date is a legal (or sensible) name for a column. This could be easier and safer if you've got some kind of ID column. then we would use that for the cursor rather than the date
declare #numberOfMonthsToAdd int
declare #currentDate dateTime
set #numberOfMonthsToAdd = 0
declare myCursor cursor for
select [mydate] from Table1
open myCursor
while ##fetch_Status<>-1
begin
fetch next from myCursor into #currentDate
update Table1 set [mydate] = DATEADD(month,#numberOfMonthsToAdd, [mydate]) where [mydate] = #currentDate
set #numberOfMonthsToAdd = #numberOfMonthsToAdd + 1
end
close mycursor
deallocate mycursor
From your example, it seems you want to change the dates relative to a base date:
declare #basedate datetime
select #basedate = min([Date]) FROM Table1 WHERE ...
UPDATE [Table1]
SET [Date] = DATEADD(MONTH, DATEDIFF(MONTH, #basedate, [Date]) * 2, [Date])
WHERE ...
Related
My end goal is to see end of month data for previous month.
Our processing is a day behind so if today is 7/28/2021 our Process date is 7/27/2021
So, I want my data to be grouped.
DECLARE
#ProcessDate INT
SET #ProcessDate = (SELECT [PrevMonthEnddatekey] FROM dbo.dimdate WHERE datekey = (SELECT [datekey] FROM sometable [vwProcessDate]))
SELECT
ProcessDate
, LoanOrigRiskGrade
,SUM(LoanOriginalBalance) AS LoanOrigBalance
,Count(LoanID) as CountofLoanID
FROM SomeTable
WHERE
ProcessDate in (20210131, 20210228,20210331, 20210430, 20210531, 20210630)
I do not want to hard code these dates into my WHERE statement. I have attached a sample of my results.
I am GROUPING BY ProcessDate, LoanOrigRiskGrade
Then ORDERING BY ProcessDate, LoanOrigIRskGrade
It looks like you want the last day of the month for months within a specified range. You can parameterize that.
For SQL Server:
DECLARE #ProcessDate INT
SET #ProcessDate = (
SELECT [PrevMonthEnddatekey]
FROM dbo.dimdate
WHERE datekey = (
SELECT [datekey]
FROM sometable [vwProcessDate]
)
)
DECLARE #startDate DATE
DECLARE #endDate DATE
SET #startDate = '2021-01-01'
SET #endDate = '2021-06-30'
;
with d (dt, eom) as (
select #startDate
, convert(int, replace(convert(varchar(10), eomonth(#startDate), 102), '.', ''))
union all
select dateadd(month, 1, dt)
, eomonth(dateadd(month, 1, dt))
from d
where dateadd(month, 1, dt) < #endDate
)
SELECT ProcessDate
, LoanOrigRiskGrade
, SUM(LoanOriginalBalance) AS LoanOrigBalance
, Count(LoanID) as CountofLoanID
FROM SomeTable
inner join d on d.eom = SomeTable.ProcessDate
Difficult to check without sample data.
In SQL, I am going to write a query which insert all data between 2 dates and also I want to bring then in a 1000 batch but since the number of data between those days are more than my limitation I was going to write a loop which makes the smaller period to bring the data.
here is my code:
DECLARE #StartDate DATETIME = CAST('2021-06-02 01:00:00.000' AS DATETIME)
DECLARE #EndDate DATETIME = CAST('2021-06-23 01:00:00.000' AS DATETIME)
DECLARE #RealRowCount INT = (SELECT DISTINCT SUM(##ROWCOUNT) OVER() FROM GetReport (
#StartDate, #EndDate))
DECLARE #TransactionCount INT = (SELECT DISTINCT TransactionCount FROM GetReport (
#StartDate, #EndDate))
WHILE #RealRowCount < #TransactionCount
BEGIN
DECLARE #DiffDate INT = (SELECT DATEDIFF(DAY, #StartDate, #EndDate))
SET #EndDate = DATEADD(DAY, #DiffDate/2 ,#StartDate)
SELECT *,#StartDate, #EndDate FROM GetReport (#StartDate, #EndDate)
END
PS: I was thinking about find the middle of the period of date and then change them into the new EneDate and StartDate but there is problem here!
Your question is not very clear. Suppose you have 10,000 records between two dates and you do not want to retrieve more than a thousand records at a time. In this case, you can use pagination. Both in the program code and in SQL.
DECLARE #StartDate DATETIME = CAST('2021-06-02 01:00:00.000' AS DATETIME)
DECLARE #EndDate DATETIME = CAST('2021-06-23 01:00:00.000' AS DATETIME)
DECLARE #RealRowCount INT = (SELECT DISTINCT COUNT(*) FROM Products WHERE InsertDate BETWEEN #StartDate AND #EndDate)
DECLARE #Counter INT = 0
WHILE #Counter <= #RealRowCount
BEGIN
SELECT *
FROM Products
WHERE InsertDate BETWEEN #StartDate AND #EndDate
ORDER BY InsertDate
OFFSET #Counter ROWS -- skip #Counter rows
FETCH NEXT 1000 ROWS ONLY -- take 1000 rows
SET #Counter = #Counter + 1000
END
Or you can get the time difference between the two dates and add the start date each time in a specific step and retrieve the data of that date.
For example, the date difference is 20 days. Increase the start date by 5 steps each time to the start date with the end date
I create another table to put Dates and if this table has any rows I can get 'EndDate', but if it has not any records I simply just use the date that I specified.
AccSync is the table that I insert details of my records and AccTransformation is the table wich I want to insert all of my records.
DECLARE #Count INT = (SELECT COUNT(*) FROM [AccTransaction])
DECLARE #Flag BIT = (SELECT IIF(#Count > 1, 1, 0))
DECLARE #End DATETIME = GETDATE();
DECLARE #Start DATETIME
IF(#Flag = 0)
BEGIN
SET #Start = CAST('2021-03-08' AS DATETIME2);
SET #Flag = 1
END
ELSE IF(#Flag = 1)
BEGIN
SET #Start = (SELECT TOP 1 EndDate FROM (SELECT EndDate FROM [AccSync] ORDER BY ActionDate DESC OFFSET 0 ROW) AS TT);
END
DECLARE #RealRowCount INT = (SELECT DISTINCT SUM(##ROWCOUNT) FROM [GetReport] (#Start, #End));
DECLARE #TransactionCount INT = (SELECT DISTINCT TransactionCount FROM [GetReport] (#Start, #End));
----------------------------------------------------------------------------------------------
WHILE (#RealRowCount <> #TransactionCount)
BEGIN
DECLARE #DiffDate INT = (SELECT DATEDIFF(SECOND, #Start, #End))
SET #End = DATEADD(SECOND, (#DiffDate/2), #Start)
SET #RealRowCount = (SELECT DISTINCT SUM(##ROWCOUNT) FROM [GetReport] (#Start, #End))
SET #TransactionCount = (SELECT DISTINCT TransactionCount FROM [GetReport] (#Start, #End))
END
----------------------------------------------------------------------------------------------
INSERT INTO [AccTransaction]
SELECT *
FROM [GetReport](#Start, #End)
----------------------------------------------------------------------------------------------
INSERT INTO [AccSync]
VALUES(NEWID(), GETDATE(), #Start, #End, ISNULL(#TransactionCount,0), DATEDIFF(SECOND, #Start, #End))
I have start date, end date and name of days. How can fetch all dates between those two dates of that specific days in sql?
example data:
start_date:4/11/2018
end_date: 5/11/2018
days: monday, thursday
expected output: all dates between start and end date which comes on monday and thursday and store them in table
updated
my present code(not working)
; WITH CTE(dt)
AS
(
SELECT #P_FROM_DATE
UNION ALL
SELECT DATEADD(dw, 1, dt) FROM CTE
WHERE dt < #P_TO_DATE
)
INSERT INTO Table_name
(
ID
,DATE_TIME
,STATUS
,CREATED_DATE
,CREATED_BY
)
SELECT #P_ID
,(SELECT dt FROM CTE WHERE DATENAME(dw, dt) In ('tuesday','friday',null))
,'NOT SENT'
,CAST(GETDATE() AS DATE)
,#USER_ID
Another approach for generating dates between ranges can be like following query. This will be faster compared to CTE or WHILE loop.
DECLARE #StartDate DATETIME = '2018-04-11'
DECLARE #EndDate DATETIME = '2018-05-15'
SELECT #StartDate + RN AS DATE FROM
(
SELECT (ROW_NUMBER() OVER (ORDER BY (SELECT NULL)))-1 RN
FROM master..[spt_values] T1
) T
WHERE RN <= DATEDIFF(DAY,#StartDate,#EndDate)
AND DATENAME(dw,#StartDate + RN) IN('Monday','Thursday')
Note:
If the row count present in master..[spt_values] is not sufficient for the provided range, you can make a cross join with the same to get a bigger range like following.
SELECT (ROW_NUMBER() OVER (ORDER BY (SELECT NULL)))-1 RN
FROM master..[spt_values] T1
CROSS JOIN master..[spt_values] T2
By this you will be able to generate date between a range with gap of 6436369 days.
You can use a recursive common table expression (CTE) to generate a list of days. With datepart(dw, ...) you can filter for specific days of the week.
An example that creates a list of Mondays and Thursdays between March 1st and today:
create table ListOfDates (dt date);
with cte as
(
select cast('2018-03-01' as date) as dt -- First day of interval
union all
select dateadd(day, 1, dt)
from cte
where dt < getdate() -- Last day of interval
)
insert into ListOfDates
(dt)
select dt
from cte
where datepart(dw, dt) in (2, 5) -- 2=Monday and 5=Thursday
option (maxrecursion 0)
See it working at SQL Fiddle.
This will work for you:
DECLARE #table TABLE(
ID INT IDENTITY(1,1),
Date DATETIME,
Day VARCHAR(50)
)
DECLARE #Days TABLE(
ID INT IDENTITY(1,1),
Day VARCHAR(50)
)
INSERT INTO #Days VALUES ('Monday')
INSERT INTO #Days VALUES ('Thursday')
DECLARE #StartDate DATETIME='2018-01-01';
DECLARE #EndDate DATETIME=GETDATE();
DECLARE #Day VARCHAR(50)='Friday';
DECLARE #TempDate DATETIME=#StartDate;
WHILE CAST(#TempDate AS DATE)<=CAST(#EndDate AS DATE)
BEGIN
IF EXISTS (SELECT 1 FROM #Days WHERE DAY IN (DATENAME(dw,#TempDate)))
BEGIN
INSERT INTO #table
VALUES (
#TempDate, -- Date - datetime
DATENAME(dw,#TempDate) -- Day - varchar(50)
)
END
SET #TempDate=DATEADD(DAY,1,#TempDate)
END
SELECT * FROM #table
INSERT INTO TargetTab(dateCOL)
SELECT dateCOL
FROM tab
WHERE dateCOL >= startdate AND dateCOL <= enddate
AND (DATENAME(dw,dateCOL) ='Thursday' OR DATENAME(dw,dateCOL) = 'Monday')
Try this query to get your result.
Use a recursive CTE to generate your dates, then filter by week day.
SET DATEFIRST 1 -- 1: Monday, 7 Sunday
DECLARE #StartDate DATE = '2018-04-11'
DECLARE #EndDate DATE = '2018-05-15'
DECLARE #WeekDays TABLE (WeekDayNumber INT)
INSERT INTO #WeekDays (
WeekDayNumber)
VALUES
(1), -- Monday
(4) -- Thursday
;WITH GeneratingDates AS
(
SELECT
GeneratedDate = #StartDate,
WeekDay = DATEPART(WEEKDAY, #StartDate)
UNION ALL
SELECT
GeneratedDate = DATEADD(DAY, 1, G.GeneratedDate),
WeekDay = DATEPART(WEEKDAY, DATEADD(DAY, 1, G.GeneratedDate))
FROM
GeneratingDates AS G -- Notice that we are referencing a CTE that we are also declaring
WHERE
G.GeneratedDate < #EndDate
)
SELECT
G.GeneratedDate
FROM
GeneratingDates AS G
INNER JOIN #WeekDays AS W ON G.WeekDay = W.WeekDayNumber
OPTION
(MAXRECURSION 30000)
Try this:
declare #start date = '04-11-2018'
declare #end date = '05-11-2018'
declare #P_ID int = 1
declare #USER_ID int = 11
;with cte as(
select #start [date]
union all
select dateadd(DAY, 1, [date]) from cte
where [date] < #end
)
--if MY_TABLE doesn't exist
select #P_ID,
[date],
'NOT SENT',
cast(getdate() as date),
#USER_ID
into MY_TABLE
from cte
--here you can specify days: 1 - Sunday, 2 - Monday, etc.
where DATEPART(dw,[date]) in (2, 5)
option (maxrecursion 0)
--if MY_TABLE does exist
--insert into MY_TABLE
--select #P_ID,
-- [date],
-- 'NOT SENT',
-- cast(getdate() as date),
-- #USER_ID
--from cte
--where DATEPART(dw,[date]) in (2, 5)
--option (maxrecursion 0)
I have an SQL Statement which accepts a parameter #EndDate as DateTime. I want to be able to pass several values for #EndDate one by one and then Union the results of all the Queries. I have tried using CTE for this but it is of no use. I want to pass several Dates for #EndDate. Any help would be greatly appreciated.
My Query is:
DECLARE #EndDate as DateTime
SET #EndDate = '2018/02/25'
SELECT
CONVERT(VARCHAR, #EndDate, 101) [R_Date]
,[Name]
[Type]
FROM [dbo].[S_Table]
This is Sample query how u can loop through multiple dates. A while loop should select all rows into one table, do not need to perform union all
DECLARE #table TABLE (
day INT
,Month INT
,DATE DATE
)
DECLARE #startdate DATE = '2018/02/25'
DECLARE #enddate DATE = cast(getdate() AS DATE)
WHILE #startdate <= #enddate
BEGIN
SELECT #startdate = dateadd(dd, 1, #startdate)
INSERT #table (
day
,Month
,DATE
)
SELECT day(#startdate)
,MONTH(#startdate)
,#startdate
END
SELECT *
FROM #table;
In your logic for passing multiple values into query , you can store result set into temporal table, which holds looped records
DECLARE #table TABLE (
[R_Date] DATE
,Name VARCHAR(155)
,Value VARCHAR(155)
)
DECLARE #enddate DATE = '2018/02/25'
DECLARE #enddate1 DATE = cast(getdate() AS DATE)
WHILE #enddate <= #enddate1
BEGIN
SELECT #enddate = dateadd(dd, 1, #enddate)
INSERT #table (
R_Date
,Name
,Value
)
SELECT CONVERT(VARCHAR, #EndDate, 101) [R_Date]
,[Name] [Type]
FROM [dbo].[S_Table]
WHERE DATE = #enddate
-------More filters
END
SELECT *
FROM #table;
I have a blank table that has two columns [ID] and [MyDate].
I would like to populate that table with all of the days of the current year MINUS weekends.
Is there a way to do this with a SQL query?
In this case I am using MSSQL T-SQL
I do not have any example code, as I am at a loss on where to get started for this scenario.
Using a numbers (Tally) table helps you to avoid using loops.
If you don't already have a numbers table, you can use this script to create it:
SELECT TOP 10000 IDENTITY(int,0,1) AS Number
INTO Tally
FROM sys.objects s1
CROSS JOIN sys.objects s2
ALTER TABLE Tally ADD CONSTRAINT PK_NumbersTest PRIMARY KEY CLUSTERED (Number)
For more information about the creation of a numbers table, read this SO post.
Now that you have a numbers table, you can use a cte to generate the dates you want. I've used DATEFROMPARTS and GETDATE() to get Jauary 1st of the current year, if you are using a version of sql server below 2012 you need to use other methods for that:
DECLARE #StartDate Date,
#EndDate Date
SELECT #StartDate = DATEFROMPARTS(YEAR(GetDate()), 1, 1)
SELECT #EndDate = DATEADD(Year, 1, #StartDate)
Now, create a CTE to get the dates required using the numbers table, and insert the records from the cte to the table:
;WITH CTE AS
(
SELECT DATEADD(Day, Number, #StartDate) As TheDate
FROM Tally
WHERE DATEADD(Day, Number, #StartDate) < #EndDate
)
INSERT INTO WeekDays
SELECT TheDate
FROM CTE
WHERE DATEPART(WeekDay, TheDate) BETWEEN 2 AND 6
See a live demo on rextester.
This will do it. Here the 1 and the 7 represents Sunday and Saturday
CREATE TABLE T (
ID INT NOT NULL IDENTITY(1,1),
MyDate DATE NOT NULL)
DECLARE #Start DATE
DECLARE #End DATE
SET #Start = '20170101'
SET #End = '20171231'
WHILE #Start <= #End
BEGIN
IF (DATEPART(DW, #Start) NOT IN (1,7))
BEGIN
INSERT INTO T (MyDate) VALUES (#Start)
END
SET #Start = DATEADD(DAY, 1, #Start)
END
SELECT * FROM T
Here's my quick attempt at your problem. Just use your table instead
select
CAST('2017-03-15' as datetime) as datestuff
into #test
Delete from #test
DECLARE #Y datetime = CAST('2017-12-31' AS DATE)
while #y != '2017-01-01'
begin
if DATENAME(DW, #y) not IN ('SUNDAY', 'SATURDAY')
BEGIN
INSERT INTO #test
SELECT #y
END
SET #Y = DATEADD(DD, -1, #Y)
end
select * from #test