Replace a string between two identical characters

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I have a string like

SQL

DECLARE @VAR VARCHAR(MAX)
SET @String = '1,1000,"1,1000",0,0,"1,125"'

I want it as '1,1000,"11000",0,0,"1125"'

is it possible?

I tried using the

SQL

Replace(SUBSTRING(@String, CHARINDEX('"', @String) + 1,LEN(REPLACE(@String,'"',''))-1),',','')

but it returning "1000",11000,0,0,"1125

please help

Posted 1-Apr-13 23:43pm

Madhav Hatwalne

Updated 1-Apr-13 23:49pm

Maciej Los

v3

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Zoltán Zörgő 2-Apr-13 5:46am

So you want to remove the string marker double quotes and the commas from within the strings?
And why are you doing this CSV conversion with T-SQL?
Do you have the possibility to install CLR UDF on the SQL Server?

Madhav Hatwalne 2-Apr-13 5:48am

Actually i want to bulk insert in a file
just look @ my previous question: Read Comma in comma separated file[^]

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OriginalGriff · Accepted Answer · 2013-04-01T23:58:00

You need to break it up into elements so that you only remove teh commas between double quotes:

SQL

DECLARE @STRING VARCHAR(MAX)
DECLARE @START VARCHAR(MAX)
DECLARE @MID VARCHAR(MAX)
DECLARE @END VARCHAR(MAX)
DECLARE @I int
SET @STRING = '1,1000,"1,1000",0,0,"1,125"'
SET @I = CHARINDEX('"', @STRING)
SET @START = SUBSTRING(@STRING, 0, @I)
SET @STRING = SUBSTRING(@STRING, @I + 1, LEN(@STRING))
SET @I = CHARINDEX('"', @STRING)
SET @MID = SUBSTRING(@STRING, 0, @I)
SET @END = SUBSTRING(@STRING, @I + 1, LEN(@STRING))
SET @MID = REPLACE(@MID, ',', '')
SET @STRING = @START + @MID + @END

You may have to add a WHILE loop if there is more than one quoted section - I leave that as an exercise for the reader! :laugh:

Aarti Meswania · Accepted Answer · 2013-04-02T00:06:00

Create below function

SQL

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[ParseValues]
(@String varchar(8000), @Delimiter varchar(10) )
RETURNS @RESULTS TABLE (ID int identity(1,1), Val varchar(50))
AS
BEGIN
    DECLARE @Value varchar(100)
    WHILE @String is not null
    BEGIN
        SELECT @Value=CASE WHEN PATINDEX('%'+@Delimiter+'%',@String) >0 THEN LEFT(@String,PATINDEX('%'+@Delimiter+'%',@String)-1) ELSE @String END, @String=CASE WHEN PATINDEX('%'+@Delimiter+'%',@String) >0 THEN SUBSTRING(@String,PATINDEX('%'+@Delimiter+'%',@String)+LEN(@Delimiter),LEN(@String)) ELSE NULL END
        INSERT INTO @RESULTS (Val)
        SELECT @Value
    END
RETURN
END

Now execute below query...

SQL

DECLARE @String VARCHAR(MAX)
DECLARE @S VARCHAR(MAX)
SET @String = '1,1000,"1,1000",0,0,"1,125"'

	select @S = COALESCE(@S, '') +case when charindex('"',val)>0 then case when charindex('"',val) > 1 then '' else '"' end else '' end
				+ 
				replace(val,'"','')
				+ 
				case when charindex('"',val)>0 then case when charindex('"',val) > 1 then '",' else '' end else ',' end  
	from dbo.parsevalues(@string,',')
select substring(@s,0,len(@s))

Happy Coding!
:)

Replace a string between two identical characters

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