Get allocated serial number only

Question

I have a UDF serialno in Sales Order and a Stored Procedure that will  save selected serials. But It still saves not selected serial.How to know if serial is alread allocated in Sales Order? Also anyone where is SBDR table? When I look at the system information of the rows from selection its from SBDR, but there is no table when I look at the SQL.
This is my Stored Procedure.
declare @rowcount int
declare @rowcount1 int
declare @mycount as int
declare @mystring nvarchar(255)
declare @myitem  nvarchar(10)
declare @myserial nvarchar(100)
declare @mybaseentry as nvarchar(10)
declare @mylinenum as int
declare @gdocentry as nvarchar(255)
declare @gitemcode as nvarchar(255)
declare @glinenum as int
IF @object_type='17' AND (@transaction_type='A' or @transaction_type='U')
BEGIN
--for U_serial==============================================================================================================================================
  set @rowcount=(select count(*) from syscolumns a,sysobjects b where a.name='u_serialno' and b.name='rdr1' and a.id=b.id)
  if @rowcount>0 and (@transaction_type='A' or @transaction_type='U')
  begin
  set @gdocentry=''
  set @gitemcode=''
  set @glinenum=''
  --update RDR1 set U_serialno='' where docentry=@gdocentry and itemcode=@gitemcode and linenum=@glinenum
  declare serial_no cursor for SELECT A.DOCENTRY, A.ITEMCODE, A.LINENUM FROM RDR1 A, OITM B WHERE A.DOCENTRY=@list_of_cols_val_tab_del AND A.ITEMCODE=B.ITEMCODE AND B.MANSERNUM='Y'
  open serial_no
  fetch next from serial_no into @gdocentry,@gitemcode,@glinenum
  while @@fetch_status=0 begin
  set @myserial=''
  select @myserial=@myserial + cast(intrserial as varchar(255)) + ', ' from sri1 a, osri b where a.itemcode=b.itemcode and a.itemcode=@gitemcode and a.baseentry=@gdocentry and a.baselinnum=@glinenum and a.sysserial=b.sysserial  Group by cast(intrserial as varchar(255))
  set @myserial=case when @myserial='' then '' else left(@myserial,len(@myserial)-1) end
  update rdr1 set u_serialno=@myserial where docentry=@gdocentry and itemcode=@gitemcode and linenum=@glinenum
  fetch next from serial_no into @gdocentry,@gitemcode,@glinenum
  end
  Close serial_no
  deallocate serial_no
  end
END

Answer 1

Hi, thanks for the reply. How can I update the allocated serials for Sales Order using stored procedure?For example I add two serials for item one:serial1 and serial2 and saved it on my RDR1 U_serialno.The output data on my UDF U_serialno would be serial1,serial2.  Next I want to update the sales order and remove serial2 when I update my Sales Order the U_serialno should be serial1 only but It still saves serial1,serial2 . This is my stored procedure:
declare @rowcount int
declare @rowcount1 int
declare @mycount as int
declare @mystring nvarchar(255)
declare @myitem  nvarchar(10)
declare @myserial nvarchar(100)
declare @mybaseentry as nvarchar(10)
declare @mylinenum as int
declare @gdocentry as nvarchar(255)
declare @gitemcode as nvarchar(255)
declare @glinenum as int
IF @object_type='17' AND (@transaction_type='A' or @transaction_type='U')
BEGIN
--for U_serial==============================================================================================================================================
  set @rowcount=(select count(*) from syscolumns a,sysobjects b where a.name='u_serialno' and b.name='rdr1' and a.id=b.id)
  if @rowcount>0 and (@transaction_type='A' or @transaction_type='U')
  begin
  set @gdocentry=''
  set @gitemcode=''
  set @glinenum=''
  update RDR1 set u_serialno='' where docentry=@gdocentry and itemcode=@gitemcode and linenum=@glinenum
  declare serial_no cursor for SELECT A.DOCENTRY, A.ITEMCODE, A.LINENUM FROM RDR1 A, OITM B WHERE A.DOCENTRY=@list_of_cols_val_tab_del AND A.ITEMCODE=B.ITEMCODE AND B.MANSERNUM='Y'
  open serial_no
  fetch next from serial_no into @gdocentry,@gitemcode,@glinenum
  while @@fetch_status=0 begin
  set @myserial=''
  select @myserial=@myserial + cast(intrserial as varchar(255)) + ', ' from sri1 a, osri b where a.itemcode=b.itemcode and a.itemcode=@gitemcode and a.baseentry=@gdocentry and a.baselinnum=@glinenum and a.sysserial=b.sysserial Group by cast(intrserial as varchar(255))
  set @myserial=case when @myserial='' then '' else left(@myserial,len(@myserial)-1) end
  --Select @Error=55,@error_message=@myserial
  update rdr1 set u_serialno=@myserial where docentry=@gdocentry and itemcode=@gitemcode and linenum=@glinenum
  fetch next from serial_no into @gdocentry,@gitemcode,@glinenum
  end
  Close serial_no
  deallocate serial_no
  end
END
Thanks,
Raphael