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un split in sql


un split in sql

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elham_azizi_62
elham_azizi_62
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hello all.
i use this function for split:
ALTER FUNCTION dbo.GLB_Split(@String varchar(8000), @Delimiter char(1))
returns @temptable TABLE (id int identity(1,1),items varchar(8000))
as
begin
declare @idx int
declare @slice varchar(8000)

select @idx = 1
if len(@String)<1 or @String is null return

while @idx!= 0
begin
set @idx = charindex(@Delimiter,@String)
if @idx!=0
set @slice = left(@String,@idx - 1)
else
set @slice = @String

if(len(@slice)>0)
insert into @temptable(Items) values(@slice)

set @String = right(@String,len(@String) - @idx)
if len(@String) = 0 break
end
return
end

but i want to write function split inverse and no with cursor,please help me.
my target is:
input of function :tables of string
output of function:string that seprate with comma like this:a,b,c,d
please help me how do i do and i donot want cursor.
bitbucket-25253
bitbucket-25253
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Is this what you require ?


DECLARE @String VARCHAR(8000),@Delimiter CHAR(1)
SET @Delimiter = '-'
SET @String = 'A-ab-xx-y-vv-w w-'
select @String, REPLACE(@String,@Delimiter,',')
Result:

(Orinial) (Replaced)
A-ab-xx-y-vv-w w- A,ab,xx,y,vv,w w,




If everything seems to be going well, you have obviously overlooked something.

Ron

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GilaMonster
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Take a look at the last option here: http://databases.aspfaq.com/general/how-do-i-concatenate-strings-from-a-column-into-a-single-row.html

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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Jeff Moden
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elham_azizi_62 (10/7/2012)
but i want to write function split inverse and no with cursor,please help me.


I'm a bit confused here. You use a split function that is a slow scalar UDF that uses a While Loop (the guts of a cursor). My recommendation would be to fix that bad boy first.

--Jeff Moden

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First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
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justmohit
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You can use XML PATH for the inverse function in which input is table of string and output is comma seperated value.
Jeff Moden
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justmohit (10/7/2012)
You can use XML PATH for the inverse function in which input is table of string and output is comma seperated value.


That's real nice. Do you have a code example or a link or something?

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
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Jeff Moden
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@elham,

The following link has some excellent examples of how to do as you ask and it explains the "why".
http://www.sqlservercentral.com/articles/comma+separated+list/71700/

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
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elham_azizi_62
elham_azizi_62
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I want to have this:
select column1 from table1
column1
a
b
c
and result:a,b,c
and i donot want to use cursor or virtual table.please help me.thanks
yuvipoy
yuvipoy
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declare @Temp Table(Col int)
Insert into @Temp
Select 1
UNION Select 2
UNION Select 3
UNION Select 4
UNION Select 5
Select * from @Temp
Declare @COALESCE varchar(200)
Set @COALESCE=''
Select @COALESCE=@COALESCE+Convert(varchar,Col)+',' from @Temp
Select @COALESCE=left(@COALESCE,LEN(@COALESCE)-1)
Select @COALESCE

Thanks!
elham_azizi_62
elham_azizi_62
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thanks alot from you.
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