Comments on: SQL Puzzle: SQL Advance Query – Find the range of missing years https://www.dbrnd.com/2017/10/sql-puzzle-sql-advance-query-find-the-range-of-missing-years/ BIGData | NoSQL | MSSQL | MySQL | PostgreSQL Sat, 07 Oct 2017 07:52:25 +0000 hourly 1 https://wordpress.org/?v=7.0.6 By: Dinesh I.S https://www.dbrnd.com/2017/10/sql-puzzle-sql-advance-query-find-the-range-of-missing-years/#comment-5887 Sat, 07 Oct 2017 07:52:25 +0000 https://www.dbrnd.com/?p=6643#comment-5887 Declare @MissingYear Table(MissingYear VarChar(50))
Declare @From As Int
Declare @Min As Int,@Max As Int
Set @Min=2000
Set @From=@Min
Select @Max=Max(Year(Convert(DateTime,PurcheseDate))) From TBL_Products

While (@Min<@Max)
Begin
If Exists(Select * From TBL_Products Where Year(PurcheseDate)=@Min)
Begin

If Not Exists(Select * From TBL_Products Where Year(PurcheseDate)=@From)
Begin
Insert Into @MissingYear
(MissingYear)
Values(Convert(VarChar(4),@From)+'-'+Convert(VarChar(4),@Min-1))
End
Set @From=@Min+1

End

Set @Min=@Min+1

End
Select * From @MissingYear

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