Split comma seprated value of a column and generate a new row with existing data

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Hi,
I have a table in sql server in which one column has comma seprated values, i want to generate a new row for each comma seprated value. For ex.

Table :

    col1    col2   col3
----------------------------
     1       45     7
     2       48     6,7
     3       46     4

output should be :

    col1    col2   col3
----------------------------
     1       45     7
     2       48     6
     2       48     7
     3       46     4

Thanks in advance.

Posted 17-May-12 22:15pm

Ashwani Dhiman

Updated 18-May-12 10:54am

Wendelius

v2

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OriginalGriff 18-May-12 4:21am

And what have you tried?
Where are you stuck?

bhagirathimfs 18-May-12 4:22am

While inserting to the table do this.
means insert into table for each value
Example:now you are inserting like this
col1 =1 col2=45 and col3=6,7
now insert into table like this
col1=1 col2=45 col3=6
than insert again
col1=2 col2=25 col=7

Ashwani Dhiman 18-May-12 4:33am

I have to compare the value of Col3 which is comma seprated. These tables are created previously with this structure, thats why i thought to break these value in rows.

Jim Jos 18-May-12 4:27am

Are you trying to do it with Store Proc or .NET code? .NET would be easier..

Ashwani Dhiman 18-May-12 4:35am

Store Proc

2 solutions

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S.P.Tiwari · Answer 1 · 2012-05-17T23:46:00

hi, use this code to split the value and write a stored procedure to store,

SQL

Create FUNCTION [dbo].[fn_Split] (@list nvarchar(MAX))  
   RETURNS @tbl TABLE (number int NOT NULL) AS  
BEGIN  
   DECLARE @pos        int,  
           @nextpos    int,  
           @valuelen   int  
  
   SELECT @pos = 0, @nextpos = 1  
  
   WHILE @nextpos > 0  
   BEGIN  
      SELECT @nextpos = charindex(',', @list, @pos + 1)  
      SELECT @valuelen = CASE WHEN @nextpos > 0  
                              THEN @nextpos  
                              ELSE len(@list) + 1  
                         END - @pos - 1  
      INSERT @tbl (number)  
         VALUES (convert(int, substring(@list, @pos + 1, @valuelen)))  
      SELECT @pos = @nextpos  
   END  
  RETURN  
END  
  
-- Select * from dbo.fn_Split('1,2,3')

VJ Reddy · Answer 2 · 2012-05-18T00:14:00

Solution 2

Please see this reference http://stackoverflow.com/questions/5493510/turning-a-comma-separated-string-into-individual-rows[^] where answer to a similar question is given.

Posted 18-May-12 0:14am

VJ Reddy

Comments

Wendelius 18-May-12 17:00pm

Good link!

VJ Reddy 18-May-12 20:27pm

Thank you, Mika :)

Maciej Los 18-May-12 17:26pm

Good link, +5!

VJ Reddy 18-May-12 20:28pm

Thank you, losmac :)