SQL Split string

This method involves adding a table function to your db which is given below, then you can call it like this:

declare @list varchar(8000)
set @list = 'bus order closing, that, some, other, thing'

Select item into #myTemp
from NS_Reporting.dbo.DelimitedSplit8K(@list, ‘,’)

select rtrim(ltrim(Item)) as Item from #myTemp

Here is the Table function script:

USE [NS_Reporting]
GO
/****** Object: UserDefinedFunction [dbo].[DelimitedSplit8K] Script Date: 06/06/2014 12:45:38 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER FUNCTION [dbo].[DelimitedSplit8K]
–===== Define I/O parameters
(@pString VARCHAR(8000), @pDelimiter CHAR(1))
RETURNS TABLE WITH SCHEMABINDING AS
RETURN
–===== “Inline” CTE Driven “Tally Table” produces values from 0 up to 10,000…
– enough to cover VARCHAR(8000)
WITH E1(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
), –10E+1 or 10 rows
E2(N) AS (SELECT 1 FROM E1 a, E1 b), –10E+2 or 100 rows
E4(N) AS (SELECT 1 FROM E2 a, E2 b), –10E+4 or 10,000 rows max
cteTally(N) AS (–==== This provides the “zero base” and limits the number of rows right up front
– for both a performance gain and prevention of accidental “overruns”
SELECT 0 UNION ALL
SELECT TOP (DATALENGTH(ISNULL(@pString,1))) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) FROM E4
),
cteStart(N1) AS (–==== This returns N+1 (starting position of each “element” just once for each delimiter)
SELECT t.N+1
FROM cteTally t
WHERE (SUBSTRING(@pString,t.N,1) = @pDelimiter OR t.N = 0)
)
–===== Do the actual split. The ISNULL/NULLIF combo handles the length for the final element when no delimiter is found.
SELECT ItemNumber = ROW_NUMBER() OVER(ORDER BY s.N1),
Item = SUBSTRING(@pString,s.N1,ISNULL(NULLIF(CHARINDEX(@pDelimiter,@pString,s.N1),0)-s.N1,8000))
FROM cteStart s
;