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Developer-C 11.1
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CREATE FUNCTION dbo.SplitOrdered ( @list nvarchar(max), @delim nvarchar(10) ) RETURNS TABLE WITH SCHEMABINDING AS RETURN ( WITH w(n) AS (SELECT 0 FROM (VALUES (0),(0),(0),(0)) w(n)), k(n) AS (SELECT 0 FROM w a, w b), r(n) AS (SELECT 0 FROM k a, k b, k c, k d, k e, k f, k g, k h), p(n) AS (SELECT TOP (COALESCE(LEN(@list), 0)) ROW_NUMBER() OVER (ORDER BY @@SPID) -1 FROM r), spots(p) AS ( SELECT n FROM p WHERE (SUBSTRING(@list, n, LEN(@delim + 'x') - 1) LIKE @delim OR n = 0) ), parts(p,val) AS ( SELECT p, SUBSTRING(@list, p + LEN(@delim + 'x') - 1, LEAD(p, 1, 2147483647) OVER (ORDER BY p) - p - LEN(@delim)) FROM spots AS s ) SELECT listpos = ROW_NUMBER() OVER (ORDER BY p), Item = LTRIM(RTRIM(val)) FROM parts );
DECLARE @OriginalString nvarchar(255) = N'1119/2/483/11021'; SELECT NewString = STRING_AGG(o.Item, N'/') WITHIN GROUP (ORDER BY listpos DESC) FROM dbo.SplitOrdered(@OriginalString, N'/') AS o;
NewString
11021/483/2/1119
DECLARE @OriginalString nvarchar(255) = N'1119/2/483/11021'; SELECT NewString = STUFF( (SELECT N'/' + o.Item FROM dbo.SplitOrdered(@OriginalString, N'/') AS o ORDER BY o.listpos DESC FOR XML PATH, TYPE).value(N'.[1]', N'nvarchar(max)'),1,1,N'');
NewString
11021/483/2/1119