TSQL Substract from report parameter to get previous month - sql-server

I can really use some help. I'm trying to subtract 1 from a VARCHAR report parameter that is within a CTE. I'm working in SQL 2008 R2
This works fine:
AND MONTH(CAST(c.DATETIME AS DATE)) = CONVERT(INT,#Maand)
But this just doesn't seem to work:
AND MONTH(CAST(c.DATETIME AS DATE)) = CONVERT(INT,#Maand) -1
Thanks
Here is some of my code:
ALTER PROCEDURE [rpt].[usp_F_Telefonie_Bereikbaarheid](#Jaar AS VARCHAR(4), #Maand AS VARCHAR(2))
AS
BEGIN
WITH CTE AS(
SELECT
C.DATETIME AS Datum
,d.NAME
,COUNT(Callid) AS Aantal
,'Vorige' AS Gesprekken
,DURATIONSEC
FROM DM.dm.F_CDRS AS c
JOIN DM.dm.D_DEPARTMENTS AS d
ON d.DEPARTMENTID = c.DEPARTMENTID
WHERE Direction = 1
AND YEAR(CAST(c.DATETIME AS DATE)) = #Jaar
AND MONTH(CAST(c.DATETIME AS DATE))= CONVERT(INT,#Maand)
AND WAITTIMESEC <=10
GROUP BY LEFT(D.NAME, 2), D.NAME, C.DATETIME, DURATIONSEC
)
SELECT
,CASE CTE.Gesprekken
WHEN 'Vorige'
THEN SUM(CTE.Aantal)
END AS Vorige
FROM CTE
WHERE MONTH(CAST(CTE.Datum AS DATE)) = #Maand
AND YEAR(CAST(CTE.Datum AS DATE)) = #Jaar
GROUP BY CTE.NAME, CTE.Gesprekken, CTE.DURATIONSEC, CTE.Aantal


You need to convert varchar --> datetime and then use datediff function.
Instead this:
YEAR(CAST(c.DATETIME AS DATE)) = #Jaar
AND MONTH(CAST(c.DATETIME AS DATE))= CONVERT(INT,#Maand)
use:
datediff(month, cast(#Jaar + right('0' + #Maand, 2) + '01' as datetime), c.[datetime]) = 1

Related

SSRS 2017 Cascading parameters with dates

I have a parameter called Year and you can choose one year at a time. I have a date/time parameter with a calendar called start date and another one called end date.
I would like it to work such that if I pick the year to be 2017 it will show the calendar start and end dates for 2017.
Since my start date and end date parameters are not defaulted from a dataset I am not sure how to control that.
Any help will be appreciated.

You can do it as an expression, but as its easier in SQL you can just create a second dataset with the following:
select convert(date, '1 jan ' + convert(varchar(4), #Year)), dateadd(day, -1, dateadd(year, 1, convert(date, '1 jan ' + convert(varchar(4), #Year))))

I used a recursive CTE common table expression that references itself to solve this. Then you can set the Dataset of the start_date and end_date parameters.
Dataset for the default values of the start and end date parameters
DECLARE #year AS INT
SET #year = 2018
SELECT [start_date] = DATEFROMPARTS(#year, 1, 1), [end_date] = DATEFROMPARTS(#year, 12, 31)
Dataset for the available values of the start and end date parameters
DECLARE #year AS INT
SET #year = 2018
;WITH
source_data_dates
AS
(
SELECT
[date_start] = DATEFROMPARTS(#year, 1, 1)
, [date_end] = DATEFROMPARTS(#year, 12, 31)
)
,
year_date_list([rn], [date_value])
AS
(
SELECT
[rn] = 1
, [date_value] = CAST([date_start] AS DATETIME)
FROM
source_data_dates
UNION ALL
SELECT
[rn] = [rn] + 1
, [date_start] = CAST(DATEADD(DAY, [rn], [date_start]) AS DATETIME)
FROM
year_date_list
, source_data_dates
WHERE
[rn] <= DATEDIFF(DAY, [date_start], [date_end])
)
SELECT
[rn]
, [date_value]
FROM
year_date_list
OPTION (MAXRECURSION 0)
Results:

When an UPDATE statement has access to multiple values, which one does it choose?

I didn't think this code would work, and now that is seems to be working I'm worried that it might not always work:
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL DROP TABLE #Dates
; WITH Dates
AS (
SELECT CAST(DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) AS DATE) AS CDate
UNION ALL
SELECT DATEADD(dd, 1, CDate) AS CDate
FROM Dates
WHERE DATEADD(dd, 1, CDate) < CAST(GETDATE() AS DATE)
)
SELECT d.CDate
, d.CDate AS BDate
INTO #Dates
FROM Dates d
OPTION (MAXRECURSION 400)
; WITH BDate
AS (
SELECT CDate
FROM #Dates d
WHERE CDate NOT IN ('2018-01-01', '2018-01-15', '2018-02-19') -- New Years, MLK Day, Presidents Day
AND DATEPART(dw, d.CDate) NOT IN (1,7)
)
UPDATE d
SET d.BDate = b.CDate
FROM #Dates d
JOIN BDate b
ON d.CDate <= b.CDate
SELECT * FROM #Dates
What I don't understand is how it knows which value to choose for the UPDATE statement. If we choose a random date like January 24th, a SELECT statement would give us multiple values (since that's a Wednesday and we're avoiding weekends, that list would include January 24th, 25th and 26th, and then jump to 29th, 30th, 31st, etc.). So why is it choosing the one I actually want (the minimum value that meets the criteria)? It won't let me use ORDER BY to force the order, of course.
Normally I would write my code more like this:
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL DROP TABLE #Dates
; WITH Dates
AS (
SELECT CAST(DATEADD(yy, DATEDIFF(yy, 0, GETDATE()), 0) AS DATE) AS CDate
UNION ALL
SELECT DATEADD(dd, 1, CDate) AS CDate
FROM Dates
WHERE DATEADD(dd, 1, CDate) < CAST(GETDATE() AS DATE)
)
SELECT d.CDate
, d.CDate AS BDate
INTO #Dates
FROM Dates d
OPTION (MAXRECURSION 400)
; WITH BDate
AS (
SELECT CDate
FROM #Dates d
WHERE CDate NOT IN ('2018-01-01', '2018-01-15', '2018-02-19') -- New Years, MLK Day, Presidents Day
AND DATEPART(dw, d.CDate) NOT IN (1,7)
)
, BDMin
AS (
SELECT d.CDate
, MIN(b.CDate) AS BDate
FROM #Dates d
JOIN BDate b
ON d.CDate <= b.CDate
GROUP BY d.CDate
)
UPDATE d
SET d.BDate = b.BDate
FROM #Dates d
JOIN BDMin b
ON d.CDate = b.CDate
SELECT * FROM #Dates
It certainly seems safer, but now I'm wondering if it's necessary.

TSQL get last day of previous months upto a specified month

I need to get last day of all previous months including current month, upto a specified month. For example, I need last days of september, aug, july, june, may, april, march, feb, jan, dec 2015 like so:
temptable_mytable:
last_day_of_month
-----------------
2016-09-30
2016-08-31
2016-07-31
2016-06-30
2016-05-31
2016-04-30
2016-03-31
2016-02-30
2016-01-31
2015-12-31
I need to specify the month and year to go back to - in above case it's December 2015, but it could also be September 2015 and such. Is there a way that I can do a loop and do this instead of having to calculate separately for each month end?

Use a recursive CTE with the EOMONTH function.
DECLARE #startdate DATE = '2016-01-01'
;WITH CTE
AS
(
SELECT EOMONTH(GETDATE()) as 'Dates'
UNION ALL
SELECT EOMONTH(DATEADD(MONTH, -1, [Dates]))
FROM CTE WHERE Dates > DATEADD(MONTH, 1, #startdate)
)
SELECT * FROM CTE

with temp as (select -1 i union all
select i+1 i from temp where i < 8)
select DATEADD(s,-1,DATEADD(mm, DATEDIFF(m,0,GETDATE())+i*-1,0)) from temp

declare #LASTMONTH date = '2018-10-01';
WITH MTHS AS (
SELECT dateadd(month,month(getdate()),dateadd(year,year(getdate()) - 1900, 0)) aday
UNION ALL
SELECT DATEADD(month,1,aday) from MTHS WHERE aday <= #LASTMONTH
),
LASTDAYS AS (SELECT DATEADD(day,-1,aday) finaldayofmonth from MTHS)
select * from LASTDAYS
Here is a version that goes forward or backwards as appropriate
declare #LASTMONTH date = '2013-10-01';
WITH DIF AS (SELECT CASE WHEN
YEAR(#LASTMONTH) * 12 + MONTH(#LASTMONTH)
>= YEAR(GETDATE()) * 12 + MONTH(getdate()) THEN 1 ELSE -1 END x),
MTHS AS (
SELECT dateadd(month,month(getdate()),dateadd(year,year(getdate()) - 1900, 0)) aday
UNION ALL
SELECT DATEADD(month,(SELECT X from dif),aday) from MTHS
WHERE month(aday) != month(dateadd(month,1,#LASTMONTH)) or YEAR(aday) != YEAR(dateadd(month,1,#LASTMONTH))
),
LASTDAYS AS (SELECT DATEADD(day,-1,aday) finaldayofmonth from MTHS)
select * from LASTDAYS order by finaldayofmonth

Here's one approach, using a CTE to generate a list of incrementing numbers to allow us to then have something to select from and use in a DATEADD to go back for the appropriate number of months.
Typically, if you're doing this quite frequently, instead of generating numbers on the fly like this with the CROSS JOIN, I'd recommend just creating a "Numbers" table that just holds numbers from 1 to "some number high enough to meet your needs"
DECLARE #Date DATE = '20151201'
DECLARE #MonthsBackToGo INTEGER
SELECT #MonthsBackToGo = DATEDIFF(mm, #Date, GETDATE()) + 1;
WITH _Numbers AS
(
SELECT TOP (#MonthsBackToGo) ROW_NUMBER() OVER (ORDER BY o.object_id) AS Number
FROM sys.objects o
CROSS JOIN sys.objects o2
)
SELECT EOMONTH(DATEADD(mm, -(Number- 1), GETDATE())) AS last_day_of_month
FROM _Numbers

This should scale out no matter how far you go back or forward for your originating table or object.
SET NOCOUNT ON;
DECLARE #Dates TABLE ( dt DATE)
DECLARE #Start DATE = DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()), 0)
DECLARE #End DATE = DATEADD(YEAR, 1, #Start)
WHILE #Start <= #End
BEGIN
INSERT INTO #Dates (dt) VALUES (#Start)
SELECT #Start = DATEADD(DAY, 1, #Start)
END
; With x as
(
Select
dt
, ROW_NUMBER() OVER(PARTITION BY DATEPART(YEAR, Dt), DATEPART(MONTH, Dt) ORDER BY Dt Desc) AS rwn
From #Dates
)
Select *
From x
WHERE rwn = 1
ORDER BY Dt

This was cribbed together quick based on a couple different SO answers for the parts:
DECLARE #startdate datetime, #enddate datetime
set #startdate = '2015-12-01'
set #enddate = getdate()
;WITH T(date)
AS
(
SELECT #startdate
UNION ALL
SELECT DateAdd(day,1,T.date) FROM T WHERE T.date < #enddate
)
SELECT DISTINCT
DATEADD(
day,
-1,
CAST(CAST(YEAR(date) AS varchar) + '-' + CAST(MONTH(date)AS varchar) + '-01' AS DATETIME))
FROM T OPTION (MAXRECURSION 32767);

How to insert all dates in 2015 in Date field?

I am using SQL Server and have a table (Table_Date) with a 'date' field. I want to insert all 2015 dates in this field.
It should have 365 distinct rows, 1 row for each day of 2015.

One method is with a recursive CTE:
with dates as (
select cast('2015-01-01' as date) as thedate
union all
select dateadd(day, 1, thedate)
from dates
where thedate < '2015-12-31'
)
select *
from dates
option (maxrecursion 0);
An alternative is to use a table that has at least 365 rows. master..spt_values is often used for this purpose:
select dateadd(day, seqnum - 1, '2015-01-01')
from (select row_number() over (order by ()) as seqnum
from master..spt_values
) t
where seqnum <= 365;

Here's one way:
CREATE TABLE #nums(num INT);
INSERT INTO #nums VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
WITH cteDays AS
(
SELECT 100*d100.num + 10*d10.num + d1.num AS YearDay
FROM #nums AS d1
CROSS JOIN #nums AS d10
CROSS JOIN #nums AS d100
WHERE d100.num <=3
)
SELECT CAST('2015-01-01' AS DATETIME) + YearDay AS YearDate
FROM cteDays
WHERE YEAR(CAST( CAST('2015-01-01' AS DATETIME) + YearDay AS DATETIME)) = 2015

Something like this could work as well:
declare #count int = 0
while (#count < 365)
begin
--make this the insert
select DATEADD(DD, #count, getdate())
set #count = #count + 1
end
Not sure what context this will applied to though... This is very basic, but if this is a one-time event it won't matter.

Get a list of dates between two dates using a function

My question is similar to this MySQL question, but intended for SQL Server:
Is there a function or a query that will return a list of days between two dates? For example, lets say there is a function called ExplodeDates:
SELECT ExplodeDates('2010-01-01', '2010-01-13');
This would return a single column table with the values:
2010-01-01
2010-01-02
2010-01-03
2010-01-04
2010-01-05
2010-01-06
2010-01-07
2010-01-08
2010-01-09
2010-01-10
2010-01-11
2010-01-12
2010-01-13
I'm thinking that a calendar/numbers table might be able to help me here.
Update
I decided to have a look at the three code answers provided, and the results of the execution - as a % of the total batch - are:
Rob Farley's answer : 18%
StingyJack's answer : 41%
KM's answer : 41%
Lower is better
I have accepted Rob Farley's answer, as it was the fastest, even though numbers table solutions (used by both KM and StingyJack in their answers) are something of a favourite of mine. Rob Farley's was two-thirds faster.
Update 2
Alivia's answer is much more succinct. I have changed the accepted answer.

this few lines are the simple answer for this question in sql server.
WITH mycte AS
(
SELECT CAST('2011-01-01' AS DATETIME) DateValue
UNION ALL
SELECT DateValue + 1
FROM mycte
WHERE DateValue + 1 < '2021-12-31'
)
SELECT DateValue
FROM mycte
OPTION (MAXRECURSION 0)

Try something like this:
CREATE FUNCTION dbo.ExplodeDates(#startdate datetime, #enddate datetime)
returns table as
return (
with
N0 as (SELECT 1 as n UNION ALL SELECT 1)
,N1 as (SELECT 1 as n FROM N0 t1, N0 t2)
,N2 as (SELECT 1 as n FROM N1 t1, N1 t2)
,N3 as (SELECT 1 as n FROM N2 t1, N2 t2)
,N4 as (SELECT 1 as n FROM N3 t1, N3 t2)
,N5 as (SELECT 1 as n FROM N4 t1, N4 t2)
,N6 as (SELECT 1 as n FROM N5 t1, N5 t2)
,nums as (SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 1)) as num FROM N6)
SELECT DATEADD(day,num-1,#startdate) as thedate
FROM nums
WHERE num <= DATEDIFF(day,#startdate,#enddate) + 1
);
You then use:
SELECT *
FROM dbo.ExplodeDates('20090401','20090531') as d;
Edited (after the acceptance):
Please note... if you already have a sufficiently large nums table then you should use:
CREATE FUNCTION dbo.ExplodeDates(#startdate datetime, #enddate datetime)
returns table as
return (
SELECT DATEADD(day,num-1,#startdate) as thedate
FROM nums
WHERE num <= DATEDIFF(day,#startdate,#enddate) + 1
);
And you can create such a table using:
CREATE TABLE dbo.nums (num int PRIMARY KEY);
INSERT dbo.nums values (1);
GO
INSERT dbo.nums SELECT num + (SELECT COUNT(*) FROM nums) FROM nums
GO 20
These lines will create a table of numbers containing 1M rows... and far quicker than inserting them one by one.
You should NOT create your ExplodeDates function using a function that involves BEGIN and END, as the Query Optimizer becomes unable to simplify the query at all.

This does exactly what you want, modified from Will's earlier post. No need for helper tables or loops.
WITH date_range (calc_date) AS (
SELECT DATEADD(DAY, DATEDIFF(DAY, 0, '2010-01-13') - DATEDIFF(DAY, '2010-01-01', '2010-01-13'), 0)
UNION ALL SELECT DATEADD(DAY, 1, calc_date)
FROM date_range
WHERE DATEADD(DAY, 1, calc_date) <= '2010-01-13')
SELECT calc_date
FROM date_range;

DECLARE #MinDate DATETIME = '2012-09-23 00:02:00.000',
#MaxDate DATETIME = '2012-09-25 00:00:00.000';
SELECT TOP (DATEDIFF(DAY, #MinDate, #MaxDate) + 1) Dates = DATEADD(DAY, ROW_NUMBER() OVER(ORDER BY a.object_id) - 1, #MinDate)
FROM sys.all_objects a CROSS JOIN sys.all_objects b;

I'm an oracle guy, but I believe MS SQL Server has support for the connect by clause:
select sysdate + level
from dual
connect by level <= 10 ;
The output is:
SYSDATE+LEVEL
05-SEP-09
06-SEP-09
07-SEP-09
08-SEP-09
09-SEP-09
10-SEP-09
11-SEP-09
12-SEP-09
13-SEP-09
14-SEP-09
Dual is just a 'dummy' table that comes with oracle (it contains 1 row and the word 'dummy' as the value of the single column).

A few ideas:
If you need the list dates in order to loop through them, you could have a Start Date and Day Count parameters and do a while loop whilst creating the date and using it?
Use C# CLR Stored Procedures and write the code in C#
Do this outside the database in code

Would all these dates be in the database already or do you just want to know the days between the two dates? If it's the first you could use the BETWEEN or <= >= to find the dates between
EXAMPLE:
SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2
OR
SELECT column_name(s)
FROM table_name
WHERE column_name
value1 >= column_name
AND column_name =< value2

All you have to do is just change the hard coded value in the code provided below
DECLARE #firstDate datetime
DECLARE #secondDate datetime
DECLARE #totalDays INT
SELECT #firstDate = getDate() - 30
SELECT #secondDate = getDate()
DECLARE #index INT
SELECT #index = 0
SELECT #totalDays = datediff(day, #firstDate, #secondDate)
CREATE TABLE #temp
(
ID INT NOT NULL IDENTITY(1,1)
,CommonDate DATETIME NULL
)
WHILE #index < #totalDays
BEGIN
INSERT INTO #temp (CommonDate) VALUES (DATEADD(Day, #index, #firstDate))
SELECT #index = #index + 1
END
SELECT CONVERT(VARCHAR(10), CommonDate, 102) as [Date Between] FROM #temp
DROP TABLE #temp

A Bit late to the party, but I like this solution quite a bit.
CREATE FUNCTION ExplodeDates(#startDate DateTime, #endDate DateTime)
RETURNS table as
return (
SELECT TOP (DATEDIFF(DAY, #startDate, #endDate) + 1)
DATEADD(DAY, ROW_NUMBER() OVER(ORDER BY a.object_id) - 1, #startDate) AS DATE
FROM sys.all_objects a
CROSS JOIN sys.all_objects b
)

Before you use my function, you need to set up a "helper" table, you only need to do this one time per database:
CREATE TABLE Numbers
(Number int NOT NULL,
CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
DECLARE #x int
SET #x=0
WHILE #x<8000
BEGIN
SET #x=#x+1
INSERT INTO Numbers VALUES (#x)
END
here is the function:
CREATE FUNCTION dbo.ListDates
(
#StartDate char(10)
,#EndDate char(10)
)
RETURNS
#DateList table
(
Date datetime
)
AS
BEGIN
IF ISDATE(#StartDate)!=1 OR ISDATE(#EndDate)!=1
BEGIN
RETURN
END
INSERT INTO #DateList
(Date)
SELECT
CONVERT(datetime,#StartDate)+n.Number-1
FROM Numbers n
WHERE Number<=DATEDIFF(day,#StartDate,CONVERT(datetime,#EndDate)+1)
RETURN
END --Function
use this:
select * from dbo.ListDates('2010-01-01', '2010-01-13')
output:
Date
-----------------------
2010-01-01 00:00:00.000
2010-01-02 00:00:00.000
2010-01-03 00:00:00.000
2010-01-04 00:00:00.000
2010-01-05 00:00:00.000
2010-01-06 00:00:00.000
2010-01-07 00:00:00.000
2010-01-08 00:00:00.000
2010-01-09 00:00:00.000
2010-01-10 00:00:00.000
2010-01-11 00:00:00.000
2010-01-12 00:00:00.000
2010-01-13 00:00:00.000
(13 row(s) affected)

Perhaps if you wish to go an easier way, this should do it.
WITH date_range (calc_date) AS (
SELECT DATEADD(DAY, DATEDIFF(DAY, 0, CURRENT_TIMESTAMP) - 6, 0)
UNION ALL SELECT DATEADD(DAY, 1, calc_date)
FROM date_range
WHERE DATEADD(DAY, 1, calc_date) < CURRENT_TIMESTAMP)
SELECT calc_date
FROM date_range;
But the temporary table is a very good approach also. Perhaps shall you also consider a populated calendar table.

Definately a numbers table, though tyou may want to use Mark Redman's idea of a CLR proc/assembly if you really need the performance.
How to create the table of dates (and a super fast way to create a numbers table)
/*Gets a list of integers into a temp table (Jeff Moden's idea from SqlServerCentral.com)*/
SELECT TOP 10950 /*30 years of days*/
IDENTITY(INT,1,1) as N
INTO #Numbers
FROM Master.dbo.SysColumns sc1,
Master.dbo.SysColumns sc2
/*Create the dates table*/
CREATE TABLE [TableOfDates](
[fld_date] [datetime] NOT NULL,
CONSTRAINT [PK_TableOfDates] PRIMARY KEY CLUSTERED
(
[fld_date] ASC
)WITH FILLFACTOR = 99 ON [PRIMARY]
) ON [PRIMARY]
/*fill the table with dates*/
DECLARE #daysFromFirstDateInTheTable int
DECLARE #firstDateInTheTable DATETIME
SET #firstDateInTheTable = '01/01/1998'
SET #daysFromFirstDateInTheTable = (SELECT (DATEDIFF(dd, #firstDateInTheTable ,GETDATE()) + 1))
INSERT INTO
TableOfDates
SELECT
DATEADD(dd,nums.n - #daysFromFirstDateInTheTable, CAST(FLOOR(CAST(GETDATE() as FLOAT)) as DateTime)) as FLD_Date
FROM #Numbers nums
Now that you have a table of dates, you can use a function (NOT A PROC) like KM's to get the table of them.
CREATE FUNCTION dbo.ListDates
(
#StartDate DATETIME
,#EndDate DATETIME
)
RETURNS
#DateList table
(
Date datetime
)
AS
BEGIN
/*add some validation logic of your own to make sure that the inputs are sound.Adjust the rest as needed*/
INSERT INTO
#DateList
SELECT FLD_Date FROM TableOfDates (NOLOCK) WHERE FLD_Date >= #StartDate AND FLD_Date <= #EndDate
RETURN
END

Declare #date1 date = '2016-01-01'
,#date2 date = '2016-03-31'
,#date_index date
Declare #calender table (D date)
SET #date_index = #date1
WHILE #date_index<=#date2
BEGIN
INSERT INTO #calender
SELECT #date_index
SET #date_index = dateadd(day,1,#date_index)
IF #date_index>#date2
Break
ELSE
Continue
END

-- ### Six of one half dozen of another. Another method assuming MsSql
Declare #MonthStart datetime = convert(DateTime,'07/01/2016')
Declare #MonthEnd datetime = convert(DateTime,'07/31/2016')
Declare #DayCount_int Int = 0
Declare #WhileCount_int Int = 0
set #DayCount_int = DATEDIFF(DAY, #MonthStart, #MonthEnd)
select #WhileCount_int
WHILE #WhileCount_int < #DayCount_int + 1
BEGIN
print convert(Varchar(24),DateAdd(day,#WhileCount_int,#MonthStart),101)
SET #WhileCount_int = #WhileCount_int + 1;
END;

In case you want to print years starting from a particular year till current date. Just altered the accepted answer.
WITH mycte AS
(
SELECT YEAR(CONVERT(DATE, '2006-01-01',102)) DateValue
UNION ALL
SELECT DateValue + 1
FROM mycte
WHERE DateValue + 1 < = YEAR(GETDATE())
)
SELECT DateValue
FROM mycte
OPTION (MAXRECURSION 0)

This query works on Microsoft SQL Server.
select distinct format( cast('2010-01-01' as datetime) + ( a.v / 10 ), 'yyyy-MM-dd' ) as aDate
from (
SELECT ones.n + 10 * tens.n + 100 * hundreds.n + 1000 * thousands.n as v
FROM (VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) ones(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) tens(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) hundreds(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) thousands(n)
) a
where format( cast('2010-01-01' as datetime) + ( a.v / 10 ), 'yyyy-MM-dd' ) < cast('2010-01-13' as datetime)
order by aDate asc;
Now let's look at how it works.
The inner query merely returns a list of integers from 0 to 9999. It will give us a range of 10,000 values for calculating dates. You can get more dates by adding rows for ten_thousands and hundred_thousands and so forth.
SELECT ones.n + 10 * tens.n + 100 * hundreds.n + 1000 * thousands.n as v
FROM (VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) ones(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) tens(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) hundreds(n),
(VALUES(0),(1),(2),(3),(4),(5),(6),(7),(8),(9)) thousands(n)
) a;
This part converts the string to a date and adds a number to it from the inner query.
cast('2010-01-01' as datetime) + ( a.v / 10 )
Then we convert the result into the format you want. This is also the column name!
format( cast('2010-01-01' as datetime) + ( a.v / 10 ), 'yyyy-MM-dd' )
Next we extract only the distinct values and give the column name an alias of aDate.
distinct format( cast('2010-01-01' as datetime) + ( a.v / 10 ), 'yyyy-MM-dd' ) as aDate
We use the where clause to filter in only dates within the range you want. Notice that we use the column name here since SQL Server does not accept the column alias, aDate, within the where clause.
where format( cast('2010-01-01' as datetime) + ( a.v / 10 ), 'yyyy-MM-dd' ) < cast('2010-01-13' as datetime)
Lastly, we sort the results.
order by aDate asc;

if you're in a situation like me where procedures and functions are prohibited, and your sql user does not have permissions for insert, therefore insert not allowed, also "set/declare temporary variables like #c is not allowed", but you want to generate a list of dates in a specific period, say current year to do some aggregation, use this
select * from
(select adddate('1970-01-01',t4*10000 + t3*1000 + t2*100 + t1*10 + t0) gen_date from
(select 0 t0 union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t0,
(select 0 t1 union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t1,
(select 0 t2 union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t2,
(select 0 t3 union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t3,
(select 0 t4 union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t4) v
where gen_date between '2017-01-01' and '2017-12-31'

WITH TEMP (DIA, SIGUIENTE_DIA ) AS
(SELECT
1,
CAST(#FECHAINI AS DATE)
FROM
DUAL
UNION ALL
SELECT
DIA,
DATEADD(DAY, DIA, SIGUIENTE_DIA)
FROM
TEMP
WHERE
DIA < DATEDIFF(DAY, #FECHAINI, #FECHAFIN)
AND DATEADD(DAY, 1, SIGUIENTE_DIA) <= CAST(#FECHAFIN AS DATE)
)
SELECT
SIGUIENTE_DIA AS CALENDARIO
FROM
TEMP
ORDER BY
SIGUIENTE_DIA
The detail is on the table DUAL but if your exchange this table for a dummy table this works.

SELECT dateadd(dd,DAYS,'2013-09-07 00:00:00') DATES
INTO #TEMP1
FROM
(SELECT TOP 365 colorder - 1 AS DAYS from master..syscolumns
WHERE id = -519536829 order by colorder) a
WHERE datediff(dd,dateadd(dd,DAYS,'2013-09-07 00:00:00'),'2013-09-13 00:00:00' ) >= 0
AND dateadd(dd,DAYS,'2013-09-07 00:00:00') <= '2013-09-13 00:00:00'
SELECT * FROM #TEMP1

Answer is avialbe here
How to list all dates between two dates
Create Procedure SelectDates(#fromDate Date, #toDate Date)
AS
BEGIN
SELECT DATEADD(DAY,number,#fromDate) [Date]
FROM master..spt_values
WHERE type = 'P'
AND DATEADD(DAY,number,#fromDate) < #toDate
END

DECLARE #StartDate DATE = '2017-09-13', #EndDate DATE = '2017-09-16'
SELECT date FROM ( SELECT DATE = DATEADD(DAY, rn - 1, #StartDate) FROM (
SELECT TOP (DATEDIFF(DAY, #StartDate, DATEADD(DAY,1,#EndDate)))
rn = ROW_NUMBER() OVER (ORDER BY s1.[object_id])
FROM sys.all_objects AS s1
CROSS JOIN sys.all_objects AS s2
ORDER BY s1.[object_id] ) AS x ) AS y
Result:
2017-09-13
2017-09-14
2017-09-15
2017-09-16

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