How to parse a string and create several columns from it?

Question

I have a varchar(max) field containing Name Value pairs, in every line I have Name UnderScore Value.

I need to do a query against it so that it returns

Answer 1

With a CTE you will have a problem with Recursion if more that 100 items

Msg 530, Level 16, State 1, Line 20 The statement terminated. The maximum recursion 100 has been exhausted before statement completion.

DECLARE @TExt NVARCHAR(MAX)
SET @TExt = '100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203'


DECLARE @Delimiter VARCHAR(1000)= ',';
WITH    numbers
          AS ( SELECT   ROW_NUMBER() OVER ( ORDER BY o.object_id, o2.object_id ) Number
               FROM     sys.objects o
                        CROSS JOIN sys.objects o2
             ),
        c AS ( SELECT   Number CHARBegin ,
                        ROW_NUMBER() OVER ( ORDER BY number ) RN
               FROM     numbers
               WHERE    SUBSTRING(@text, Number, LEN(@Delimiter)) = @Delimiter
             ),
        res
          AS ( SELECT   CHARBegin ,
                        CAST(LEFT(@text, charbegin) AS NVARCHAR(MAX)) Res ,
                        RN
               FROM     c
               WHERE    rn = 1
               UNION ALL
               SELECT   c.CHARBegin ,
                        CAST(SUBSTRING(@text, res.CHARBegin,
                                       c.CHARBegin - res.CHARBegin) AS NVARCHAR(MAX)) ,
                        c.RN
               FROM     c
                        JOIN res ON c.RN = res.RN + 1
             )
    SELECT  *
    FROM    res