last value from string

Question

last value from string

rpatil22

Ten Centuries

Points: 1371
More actions
September 1, 2010 at 8:13 am

#226441

Declare @sss varchar(100)
Set @sss ='12,11,23,34,567,690,4,1'
or
--- Set @sss ='45,56,89,212,121,33,14,7,101,4,22'
or
--- Set @sss ='334,234,217,1,4,333'
How to select last value after comma?
( For example result from first string =1 , second =22 , third =333)

Viewing 8 posts - 1 through 7 (of 7 total)

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J-F Bergeron SSCrazy Eights Points: 8593 More actions · Answer 1

You can use the REVERSE() Function, to help start from the end, and the charIndex, to find the comma. I added a case to ensure a comma is added at the end, for scenarios where there were none.

SELECT REVERSE(SUBSTRING(REVERSE(@sss), 0,

CHARINDEX(',', REVERSE(@sss) + ',', 0)))

Cheers,

J-F

jayraj0071 SSC Journeyman Points: 86 More actions · Answer 2

We can use left function also.

Declare @sss varchar(100)

Set @sss ='12,11,23,34,567,690,4,321'

set @sss = reverse(@sss)

set @sss = reverse(left(@sss,charindex(',',@sss) - 1))

print @sss

WayneS SSC Guru Points: 95460 More actions · Answer 3

Depending on how many of these you have to do, this may work better:

select top (1) Item

from dbo.DelimitedSplit8K(@sss, ',')

order by ItemNumber desc;

Click here for the latest Delimited Split Function.

Wayne
Microsoft Certified Master: SQL Server 2008
Author - SQL Server T-SQL Recipes

If you can't explain to another person how the code that you're copying from the internet works, then DON'T USE IT on a production system! After all, you will be the one supporting it!

Links:
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Jeff Moden SSC Guru Points: 1004356 More actions · Answer 4

Just a suggestion... Doing 2 or 3 REVERSE's tends to be a bit expensive even compared to an ISNULL/NULLIF combo. If you're guaranteed to always have a comma, then you can remove the ISNULL/NULLIF combo from the following and still only need one REVERSE.

DECLARE @sss TABLE (StringNumber INT, String VARCHAR(100))

INSERT INTO @sss

(StringNumber, String)

SELECT 1, '12,11,23,34,567,690,4,1' UNION ALL

SELECT 2, '45,56,89,212,121,33,14,7,101,4,22' UNION ALL

SELECT 3, '334,234,217,1,4,333' UNION ALL

SELECT 4, '1234' UNION ALL

SELECT 5, '' UNION ALL

SELECT 6, ','

SELECT StringNumber,

String,

RIGHT(String,ISNULL(NULLIF(CHARINDEX(',',REVERSE(String))-1,-1),LEN(String)))

FROM @sss

--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.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

rpatil22 Ten Centuries Points: 1371 More actions · Answer 5

change in the string - additional comma after last number.

I need last value from string.

Declare @sss varchar(100)

Set @sss ='12,11,23,34,567,690,4,1,'

or

--- Set @sss ='45,56,89,212,121,33,14,7,101,4,22,'

or

--- Set @sss ='334,234,217,1,4,333,'

J-F Bergeron SSCrazy Eights Points: 8593 More actions · Answer 6

You should be able to figure this out... Charindex has an optional parameter, look it up in BOL.

Cheers,

J-F

Jeff Moden SSC Guru Points: 1004356 More actions · Answer 7

J-F Bergeron (9/3/2010)
You should be able to figure this out... Charindex has an optional parameter, look it up in BOL.

Spot on.

--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.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)