Comments on: SQL Puzzle: Use Recursive CTE, and list out the Years from Dates

By: HIC

HIC — Wed, 17 Apr 2019 09:59:08 +0000

pl/sql version:

with years(fyear) as (
select extract(year from to_date(‘01.01.2010’, ‘dd.mm.yyyy’)) as fyear from dual
union all
select fyear + 1 from years where fyear < extract(year from to_date('01.01.2018', 'dd.mm.yyyy'))
)
select * from years;

By: Prakash Annadurai

Prakash Annadurai — Mon, 14 Jan 2019 00:15:24 +0000

Here is my solution

Drop table if exists #Records
Create table #Records
(YearColumn date)

INSERT INTO #Records
VALUES
(‘2004-01-01’)
,(‘2009-01-01’)
,(‘2012-01-01’)
,(‘2013-01-01’)
,(‘2016-01-01’)
,(‘2017-01-01’)

With Res as
(
SELECT yearColumn, lead(YearColumn) over(Order by YearColumn) as NextVal
From #Records
)
select Year(Dateadd(year,1,YearColumn)),Year(Dateadd(year,-1,NextVal))
from Res
Where datediff(year,YearColumn,NextVal)>1
Order by YearColum

By: Dinesh

Dinesh — Sat, 26 May 2018 08:08:40 +0000

Declare @StartDate DateTime,@EndDate DateTime;
Set @StartDate=’20100101′
Set @EndDate=’20180101′

;
WITH CTE
As
(Select Year(Convert(DateTime,@StartDate,112)) As YearOfBIll
Union All
Select YearOfBIll+1
From CTE
Where YearOfBill )
Select * From CTE