In SQL Sequence Number [Answered]RSS

• • Reply
  umerfaiz123@...

  Member

  12 Points

  33 Posts

  In SQL Sequence Number

  Jan 03, 2020 04:35 AM|umerfaiz123@outlook.com|LINK

  This is the thread ...

  https://forums.asp.net/t/2162845.aspx?Generate+Sequence+Number+From+The+Given+Number+in+SQL

  create table #Size(ID int identity(1,1),Size varchar(15),Qty int) 
  insert into #Size values('S1',0),('S2',10),('S3',5),('S4',4),('S5',3),('S6',2),('S7',1),('S8',10),('S9',9)
  select * from #Size
  
  --create the custom function 'GetTotal'
  IF OBJECT_ID (N'dbo.GetTotal', N'FN') IS NOT NULL  
      DROP FUNCTION GetTotal;  
  GO  
  CREATE FUNCTION dbo.GetTotal(@Qty int)  
  RETURNS varchar(max)   
  AS   
  BEGIN  
      DECLARE @Total varchar(max);  
      declare @i int=1;
      if @Qty=0
      set @Total='0,';
      else
      set @Total='';
      while(@i<=@Qty)
      begin
      set @Total+=CONVERT(varchar(max),@i)+','
      set @i+=1;
      end
      set @Total=SUBSTRING(@Total,1,LEN(@Total)-1);
      RETURN @Total;  
  END; 
  
  go
  --Use the function dbo.GetTotal like below
  select *,dbo.GetTotal(Qty) as Total from #Size

  The above query is working fine ...

  I need to generate the sequence number in 3 digit like 001,002,003,004,005,006,007,008,009,010,011 ...........099,100,101,102 etc ...

  The above query generate as 1,2,3,4,5,6,7,8,9,10,11,.....................99,100,101,102

• • Reply
  Yongqing Yu

  Contributor

  3510 Points

  1009 Posts

  Re: In SQL Sequence Number

  Jan 03, 2020 07:40 AM|Yongqing Yu|LINK

  Hi umerfaiz123,

  According to your description, you can change your sql as following sql statements:

  create table #Size(ID int identity(1,1),Size varchar(15),Qty int) 
  insert into #Size values('S1',0),('S2',10),('S3',5),('S4',4),('S5',3),('S6',2),('S7',1),('S8',10),('S9',9)
  select * from #Size
  
  --create the custom function 'GetTotal'
  IF OBJECT_ID (N'dbo.GetTotal', N'FN') IS NOT NULL  
      DROP FUNCTION GetTotal;  
  GO  
  Create FUNCTION dbo.GetTotal(@Qty int)  
  RETURNS varchar(max)   
  AS   
  BEGIN  
      DECLARE @Total varchar(max);  
      declare @i int=1;
      if @Qty=0
      set @Total='0,';
      else
      set @Total='';
      while(@i<=@Qty)
      begin
      set @Total+=CONVERT(varchar(max),(select replicate('0',3-LEN(@i)) + CONVERT(VARCHAR,@i)))+','
      set @i+=1;
      end
      set @Total=SUBSTRING(@Total,1,LEN(@Total)-1);
      RETURN @Total;  
  END; 
  
  go
  --Use the function dbo.GetTotal like below
  select *,dbo.GetTotal(Qty) as Total from #Size
  
  

  Here is the result :

  

  Best Regards,

  YongQing.

  MSDN Community Support
  
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• • Reply
  limno

  All-Star

  123098 Points

  9974 Posts

  Moderator

  Re: In SQL Sequence Number

  Jan 03, 2020 08:47 PM|limno|LINK

  create table #Size(ID int identity(1,1),Size varchar(15),Qty int) 
  insert into #Size values('S1',0),('S2',10),('S3',5),('S4',4),('S5',3),('S6',2),('S7',1),('S8',10),('S9',9)
  
  ;with mycte as (
  select ID,Size,Qty,Cast(n as nvarchar(100)) n from #Size
  outer apply (values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11),(12)) d(n)
   Where Qty>=n 
  )
  
  SELECT t1.ID,t1.Size,t1.Qty,
         Stuff(( SELECT ',' + Right('00'+ t2.n ,3)
             FROM mycte t2
            WHERE t2.ID = t1.ID and  t2.Size = t1.Size
            ORDER BY id
              FOR XML PATH(''), TYPE).value('.', 'varchar(max)'),1,1,'')  AS ids
    FROM mycte t1
   GROUP BY  t1.ID,t1.Size,t1.Qty
   union all
   select *,Cast(0 as nvarchar(100)) total from #Size
   Where Qty=0
   Order by id
   
   
  
  drop  table #Size

  Jingyang Li
  Format your SQL query with instant sql formatter:
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