Question

Parse single field into multiple columns

Asked by: malc77

Greetings Experts,

Using SQL Server 2005, I need to parse a single field into 10 columns separated by the '-'. Please review the attached sample data below:

1-01-003-2843-000100-9495445-0003-0009-2434-082906
1-01-004-3518-001472-5650553-0007-0011-2434-071906
1-01-004-3518-001840-5650395-0016-0023-2434-071806
1-01-004-3518-006300-5650625-0070-0180-0696-090906
1-01-025-3520-001200-0263780-0013-0019-2434-072106
1-01-036-2318-006720-9453664-0214-0509-2434-082206
1-01-036-2318-010080-9492002-0433-0764-2434-070406


Your help is greatly appreciated,

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Asked On
2006-10-24 at 11:08:28ID22036033
Tags

sql

,

field

,

multiple

,

columns

,

parse

Topic

MS SQL Server

Participating Experts
3
Points
500
Comments
8

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Answers

 

by: AaronAbendPosted on 2006-10-24 at 11:14:54ID: 17797986

create this function to pivot your rows... may take some tweaking.. you did not provide much for table structures...

create procedure pivoter   as
declare getrows cursor for
SELECT myfield
FROM mytable
WHERE .... - your constraints

declare @onecode varchar(20)
declare @alllcodes varchar(2000)
declare @dash varchar(1)
begin
set @dash='' --starts empty
open getrows;
fetch next from getrows into @onecode;
while (@@fetch_status=0)
begin
   set @allcodes = @allcodes + @dash+ @onecode    
   set @dash= '-'
   fetch next from getrows into @onecode;

end
close getrows;
deallocate getrows;

end

 

by: dduserPosted on 2006-10-24 at 11:33:38ID: 17798151

Create Procedure TempProc as

Declare @TempVal as Varchar(255)
Declare @InsertVal as Varchar(20)
Declare @SelectVal as Varchar(200)

Declare GetData Cursor For
Select myField from myTable

Fetch Next from GetData into @SelectVal

While (@@Fetch_Status = 0)
Begin

                      Set @TempVal = @SelectVal
                      While (PatIndex('%-%',@TempVal) <> 0)
                      Begin
                                        Set @InsertVal = Left(@TempVal,PatIndex('%-%',@TempVal) - 1)
                                        Set @TempVal = Right(@TempVal,Len(@TempVal) - PatIndex('%-%',@tempVal))
                                        Insert into TempTable (@InsertVal)
                      End
                      Insert into TempTable (@InsertVal)
End

Return




 

by: LandyJPosted on 2006-10-24 at 13:24:17ID: 17799137

If you want to place the data into individual columns, just a bit more manipulation will be needed.  This solution will work as long as the data has the same format for all rows and there will always be 10 columns of data output.

hth,
Landy

Here's the whole test script:

drop table #Data
drop table #Step
drop table #Pivot

CREATE TABLE #Data (
      Col01 varchar(100)
)

CREATE TABLE #Step (
      rowID int,
      colID int identity,
      val varchar(100)
)

CREATE TABLE #Pivot (
      rowID int,
      Col01 varchar(100),
      Col02 varchar(100),
      Col03 varchar(100),
      Col04 varchar(100),
      Col05 varchar(100),
      Col06 varchar(100),
      Col07 varchar(100),
      Col08 varchar(100),
      Col09 varchar(100),
      Col10 varchar(100)
)

-- Replace these with the INSERT INTO #Data SELECT FieldName from MyTable WHERE xFld = Cond1 ....
insert into #Data VALUES ('1-01-003-2843-000100-9495445-0003-0009-2434-082906')
insert into #Data VALUES ('1-01-004-3518-001472-5650553-0007-0011-2434-071906')
insert into #Data VALUES ('1-01-004-3518-001840-5650395-0016-0023-2434-071806')
insert into #Data VALUES ('1-01-004-3518-006300-5650625-0070-0180-0696-090906')
insert into #Data VALUES ('1-01-025-3520-001200-0263780-0013-0019-2434-072106')
insert into #Data VALUES ('1-01-036-2318-006720-9453664-0214-0509-2434-082206')
insert into #Data VALUES ('1-01-036-2318-010080-9492002-0433-0764-2434-070406')

declare cur_Pivot cursor for
      Select * from #Data
declare @row int, @col int,
      @Data varchar(100)
      
select @row= 0, @col = 0, @Data = ''

open cur_Pivot
FETCH NEXT from cur_Pivot INTO @Data

WHILE @@Fetch_Status = 0
  Begin
      INSERT INTO #Step
            (rowID, val)
      SELECT @row, *
      FROM udf_strSplit(@Data, '-')

      select @row = @row + 1
      FETCH NEXT from cur_Pivot INTO @Data
  End
 
close cur_Pivot
deallocate cur_Pivot

insert into #Pivot
SELECT rowID,
    MAX(CASE colID % 10 WHEN 1 THEN val ELSE '' END) AS Col01,
    MAX(CASE colID % 10 WHEN 2 THEN val ELSE '' END) AS Col02,
    MAX(CASE colID % 10 WHEN 3 THEN val ELSE '' END) AS Col03,
    MAX(CASE colID % 10 WHEN 4 THEN val ELSE '' END) AS Col04,
    MAX(CASE colID % 10 WHEN 5 THEN val ELSE '' END) AS Col05,
    MAX(CASE colID % 10 WHEN 6 THEN val ELSE '' END) AS Col06,
    MAX(CASE colID % 10 WHEN 7 THEN val ELSE '' END) AS Col07,
    MAX(CASE colID % 10 WHEN 8 THEN val ELSE '' END) AS Col08,
    MAX(CASE colID % 10 WHEN 9 THEN val ELSE '' END) AS Col09,
    MAX(CASE colID % 10 WHEN 0 THEN val ELSE '' END) AS Col10
from #Step
group by rowID

select * from #Pivot


AND, you'll need this udf:

CREATE FUNCTION  dbo.udf_strSplit (
                  @string varchar(8000),
                  @splitter char( 1)
                  )
RETURNS @res TABLE (val varchar( 8000))
AS
Begin
      IF SUBSTRING (@string, len ( @string), 1) <> @splitter
            SET @string= @string+@splitter

      Declare @start bigint,
            @word varchar( 8000),
            @charindex bigint,
            @i bigint
      SELECT @i=1, @start=1, @charindex= charindex( @splitter, @string, @start)

      WHILE (@charindex <> 0)
        Begin
            SET @word= substring( @string, @start, @charindex - @start)
            SET @start= @charindex +1
            SET @charindex= charindex( @splitter, @string, @start)
            INSERT INTO @res  VALUES (@word)
            SET @i=@i+1
      End

      RETURN
end

 

by: malc77Posted on 2006-10-24 at 14:06:49ID: 17799418

Greetings,

Thanks for responding and forgive for not adding the table structure, (still a bit of a novice).  

My Table structure is as follows

AuxAcctAsmnt_1      nvarchar
Cost Ctr                      nvarchar
Cost Elem#      nvarchar
Cost element name      nvarchar
Nme                      nvarchar                                                   !!!!!!!! (parsed into the fields below)!!!!!!!!!     Nme = '1-01-003-2843-000100-9495445-0003-0009-2434-082906'
[Name of offsetting account]      nvarchar
RefDocNo                      nvarchar
Per                      nvarchar
User                      nvarchar
Value ObjCurr      float
Doc# Date                      datetime
Posting Date      datetime
Mde                      varchar                  Insert from parsed Nme field
SrvTyp                      varchar                  Insert from parsed Nme field
Supplier                      varchar                  Insert from parsed Nme field
Origin                      varchar                  Insert from parsed Nme field
Quantity                      varchar                  Insert from parsed Nme field
Material                      varchar                  Insert from parsed Nme field
ActlWght                      varchar                  Insert from parsed Nme field
DimWght                      varchar                  Insert from parsed Nme field
FnlDest                      varchar                  Insert from parsed Nme field  
ShipDte                      varchar                  Insert from parsed Nme field

thanks,

 

by: malc77Posted on 2006-10-30 at 06:47:34ID: 17833925

Greetings Experts,

Sorry for the delay in response...I will try the solutions provided above today.  thanks for your patience.

 

by: malc77Posted on 2006-10-30 at 08:01:52ID: 17834586

Greetings LandyJ,

Thanks for your response this is a great solution.

Each row has a unique key field 'RefDocNo' already assigned.  Is it possible to make this field the rowid?

Sorry for not mentioning it in the beginning.

Thanks,

 

by: LandyJPosted on 2006-10-30 at 08:16:13ID: 17834702

Sure, it doesn't matter what the rowID field is.  The important one is the colID identity field.  That's the one that will sort the split-out rows into the correct columns.  By using the RefDocNo as the rowID in #Pivot, it will let you join the two tables to get your final result:

SELECT
      AuxAcctAsmnt_1,
      CostCtr,
      CostElem,
      Cost,
      Col01,
      Col02,
      Col03,
      Col04,
      Col05,
      Col06,
      Col07,
      Col08,
      Col09,
      Col10,
      RefDocNo,
      Per,
      User,
      ValueObjCurr ,
      DocDate,
      PostingDate,
      Mde,
      SrvTyp,
      Supplier,
      Origin,
      Quantity,
      Material,
      ActlWght,
      DimWght ,
      FnlDest,
      ShipDte
FROM
      MyTable mt
      INNER JOIN #Pivot t ON mt.RefDocNo = t.RefDocNo


hth,
Landy

 

by: malc77Posted on 2006-10-30 at 12:30:25ID: 17837020

Greetings,

Thanks for your assistance....This has increase my abilities as a developing DBA.

Malcolm

20120131-EE-VQP-002

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