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Saturday, July 6, 2013

SQL - Splitting a Record Field Into Multiple Records

I needed to split a field with multiple lines and a field with comma delimited values into separate records.

I used this function that I found at geekswithblogs:

CREATE FUNCTION [dbo].[fnSplit](
    @sInputList VARCHAR(8000) -- List of delimited items
  , @sDelimiter VARCHAR(8000) = ',' -- delimiter that separates items
) RETURNS @List TABLE (item VARCHAR(8000))

BEGIN
DECLARE @sItem VARCHAR(8000)
WHILE CHARINDEX(@sDelimiter,@sInputList,0) <> 0
 BEGIN
 SELECT
  @sItem=RTRIM(LTRIM(SUBSTRING(@sInputList,1,CHARINDEX(@sDelimiter,@sInputList,0)-1))),
  @sInputList=RTRIM(LTRIM(SUBSTRING(@sInputList,CHARINDEX(@sDelimiter,@sInputList,0)+LEN(@sDelimiter),LEN(@sInputList))))
 
 IF LEN(@sItem) > 0
  INSERT INTO @List SELECT @sItem
 END

IF LEN(@sInputList) > 0
 INSERT INTO @List SELECT @sInputList -- Put the last item in
RETURN
END

GO


Here is the SQL I used to split a comma delimited string::

select ID as fkAgreementID,  F.Item as Country
from vwSubAgreementAssociatedList T
CROSS APPLY dbo.fnSplit(T.ProjectCountryCode, CHAR(44)) F

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