Barcode font 128b -SQL function

• Eliza

  SSC Eights!

  Points: 967

  More actions

  July 6, 2013 at 6:06 am

  #274937

  Hi,

  I am looking for an SQL function that will generate the correct characters to make barcode font code128 work when used in Microsoft Word. The data is passed to word with the data tag using the barcode font.

  This is a web link to the rules and where the font can be downloaded.

  http://grandzebu.net/informatique/codbar-en/code128.htm

  A bit more info on the font here

  http://en.wikipedia.org/wiki/Code_128

  And I tried

  http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=70901

  http://www.sqlservercentral.com/Forums/Topic1065554-149-1.aspx

  http://www.sqlservercentral.com/Forums/Topic1062489-1291-1.aspx

  But none of these solutions appear to work when tested with a barcode reader. The bar code reader does work because we tested it against web sites generating the barcodes and it is code128b we are working with

  Anyone any ideas/SQL functions that do work.

  Many thanks

  Eliza

• mister.magoo

  SSC-Forever

  Points: 47068

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  July 6, 2013 at 7:23 pm

  #1630254

  You could try this, it produces the right output for me...

  create function [dbo].[Code128Barcode](@input varchar(3997), @table char(1) = 'B')

  returns table

  with schemabinding

  as

  --=======================================================================--

  --== Function to build the required data string for a code 128 barcode ==--

  --== Code written from a description of the specification by ==--

  --== Mister Magoo - find me on SSC or twitter @mistermag00 ==--

  --== NOTE: this code does not validate that you are passing in valid ==--

  --== data for code 128 barcodes. SISO ==--

  --=======================================================================--

  return (

  -- build an inline fast tally table

  with n10(n) as (

  select 1 union all select 1 union all

  select 1 union all select 1 union all

  select 1 union all select 1 union all

  select 1 union all select 1 union all

  select 1 union all select 1

  ),

  n100(n) as (

  select 1 from n10 a, n10 b

  ),

  n10000(n) as (

  select 1 from n100 a, n100 b

  ),

  tally(n) as (

  -- limit the tally table to the exact length of the input string

  select top(len(@input)) row_number() over(order by @@spid) as n from n10000 order by n

  )

  -- Now the query that does the "work"

  select

  -- in Code 128, the "table" is denoted by one of three START codes

  case @table

  when 'A' then char(203)

  when 'B' then char(204)

  when 'C' then char(205)

  end -- START

  + @input -- Original string

  -- The code 128 Checksum is made up by taking the sum of each

  -- of the input string's characters numbers (ASCII - 32)

  -- multiplied by it's position in the string , plus the character

  -- number of the START character, then taking MODULUS 103

  -- This number is converted to ASCII by adding 32

  + char(case when (sum(n*(ascii(substring(@input,n,1))-32))+case @table when 'A' then 103 when 'B' then 104 when 'C' then 105 end)%103>94 then 100

  else 32

  end+(sum(n*(ascii(substring(@input,n,1))-32))+case @table when 'A' then 103 when 'B' then 104 when 'C' then 105 end)%103)

  -- The STOP character never changes and denotes the end of the barcode.

  + CHAR(206) -- STOP

  -- we need an alias for the column

  AS encoded_for_128

  from tally

  )

  edit:increased number of rows in the inline tally

  edit:fixed incorrect markers

  edit:fixed high end checksums - properly this time

  MM
  

  ---

  
  select geometry::STGeomFromWKB(0x0106000000020000000103000000010000000B0000001000000000000840000000000000003DD8CCCCCCCCCC0840000000000000003DD8CCCCCCCCCC08408014AE47E17AFC3F040000000000104000CDCCCCCCCCEC3F9C999999999913408014AE47E17AFC3F9C99999999991340000000000000003D0000000000001440000000000000003D000000000000144000000000000000400400000000001040000000000000F03F100000000000084000000000000000401000000000000840000000000000003D0103000000010000000B000000000000000000143D000000000000003D009E99999999B93F000000000000003D009E99999999B93F8014AE47E17AFC3F400000000000F03F00CDCCCCCCCCEC3FA06666666666FE3F8014AE47E17AFC3FA06666666666FE3F000000000000003D1800000000000040000000000000003D18000000000000400000000000000040400000000000F03F000000000000F03F000000000000143D0000000000000040000000000000143D000000000000003D, 0);

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