SQL Server : Split string to row

Question

How to turn data from below:

CODE COMBINATION   USER
1111.111.11.0      KEN; JIMMY
666.778.0.99       KEN
888.66.77.99       LIM(JIM); JIMMY

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Answer 1

With this TVF, you can supply the string to be split and delimiter. Furthermore, you get the sequence number which can be very useful for secondary processing.

Select [CODE COMBINATION]
      ,[USER] = B.RetVal
 From  YourTable A
 Cross Apply [dbo].[udf-Str-Parse](A.[USER],';') B

Returns

The Parse UDF

CREATE FUNCTION [dbo].[udf-Str-Parse] (@String varchar(max),@Delimiter varchar(10))
Returns Table 
As
Return (  
    Select RetSeq = Row_Number() over (Order By (Select null))
          ,RetVal = LTrim(RTrim(B.i.value('(./text())[1]', 'varchar(max)')))
    From (Select x = Cast(''+ Replace(@String,@Delimiter,'')+'' as xml).query('.')) as A 
    Cross Apply x.nodes('x') AS B(i)
);
--Select * from [dbo].[udf-Str-Parse]('Dog,Cat,House,Car',',')
--Select * from [dbo].[udf-Str-Parse]('John Cappelletti was here',' ')

---

Now, another option is the Parse-Row UDF. Notice we return the parsed string in one row. Currently 9 positions, but it is easy to expand or contract.

Select [CODE COMBINATION]
      ,B.*
 From  YourTable A
 Cross Apply [dbo].[udf-Str-Parse-Row](A.[USER],';') B

Returns

The Parse Row UDF

CREATE FUNCTION [dbo].[udf-Str-Parse-Row] (@String varchar(max),@Delimiter varchar(10))
Returns Table 
As
Return (
    Select Pos1 = xDim.value('/x[1]','varchar(max)')
          ,Pos2 = xDim.value('/x[2]','varchar(max)')
          ,Pos3 = xDim.value('/x[3]','varchar(max)')
          ,Pos4 = xDim.value('/x[4]','varchar(max)')
          ,Pos5 = xDim.value('/x[5]','varchar(max)')
          ,Pos6 = xDim.value('/x[6]','varchar(max)')
          ,Pos7 = xDim.value('/x[7]','varchar(max)')
          ,Pos8 = xDim.value('/x[8]','varchar(max)')
          ,Pos9 = xDim.value('/x[9]','varchar(max)')
     From (Select Cast('' + Replace(@String,@Delimiter,'')+'' as XML) as xDim) A
)
--Select * from [dbo].[udf-Str-Parse-Row]('Dog,Cat,House,Car',',')
--Select * from [dbo].[udf-Str-Parse-Row]('John Cappelletti',' ')