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Trimming Last 3 Numbers from some Records


Trimming Last 3 Numbers from some Records

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Guitar_player
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Hi ,

I have column which are having data as Alphabets and also Numbers like to say

ID Column1
1 ABCD 123
2 XY 567
3 ghj 001
4 RUT
5 PUT


like that i have many records now i want to Trim the Last digits with numbers and keep only the string names like

ID Column1
1 ABCD
2 XY
3 ghj
4 RUT
5 PUT

Can you guys help me out please :-)
BWFC
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Will the records always have a space in them and will it always be three numbers?


On two occasions I have been asked, "Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" ... I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.
—Charles Babbage, Passages from the Life of a Philosopher

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ChrisM@Work
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Guitar_player (9/1/2014)
Hi ,

I have column which are having data as Alphabets and also Numbers like to say

ID Column1
1 ABCD 123
2 XY 567
3 ghj 001
4 RUT
5 PUT


like that i have many records now i want to Trim the Last digits with numbers and keep only the string names like

ID Column1
1 ABCD
2 XY
3 ghj
4 RUT
5 PUT

Can you guys help me out please :-)


REVERSE()
Then check the first four characters - if they are three digits followed by a space, use STUFF to remove the first four characters, otherwise leave alone
REVERSE()

“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
Eirikur Eiriksson
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Here is another method, find the last character which is not space or numeric
Cool

USE tempdb;
GO

;WITH SAMPLE_DATA(ID,Column1) AS
(SELECT ID,Column1 FROM
(VALUES
(1,'ABCD 123')
,(2,'XY 567')
,(3,'ghj 001')
,(4,'RUT')
,(5,'PUT')) AS X(ID,Column1)
)
,T(N) AS (SELECT N FROM ( VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL)) AS X(N))
SELECT
SD.ID
,SUBSTRING(SD.Column1,1,MAX(NM.N)) AS CLEAN_COL
FROM SAMPLE_DATA SD
CROSS APPLY
(SELECT TOP(LEN(SD.Column1)) (LEN(SD.Column1) + 1) - ROW_NUMBER()
OVER (ORDER BY (SELECT NULL)) AS N FROM T T1,T T2,T T3,T T4,T T5,T T6,T T7) AS NM(N)
WHERE ASCII(SUBSTRING(SD.Column1,NM.N,1)) NOT IN (32,48,49,50,51,52,53,54,55,56,57)
GROUP BY SD.ID,SD.Column1;



Results
ID          CLEAN_COL
----------- ---------
1 ABCD
2 XY
3 ghj
4 RUT
5 PUT

Guitar_player
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Hi ALL,

Thanks for your Replies . I will try the Methods which are necessary and will let you know
Guitar_player
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Eirikur Eiriksson (9/1/2014)
Here is another method, find the last character which is not space or numeric
Cool


Hi Eiriksson,

There are also quite records like 'ABC DEF 210 ' , 'ggh / sah ggh 590'...
So does the logic applies for these too ?

If possible can i get any function directly for these ..to check if the last digits are numbers ..if they are numbers then delete them and also the sapce and if not Trim the last space

Thanks & Regards,
Guitar Player
ChrisM@Work
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 ;WITH SampleData AS (
SELECT MyString = 'ABC DEF 210 ' UNION ALL
SELECT 'ggh / sah ggh 590' UNION ALL
SELECT 'ggh / sah gghXPT' UNION ALL
SELECT 'ggh / sah ggh123')

SELECT *,
NewString = CASE
WHEN SUBSTRING(rMyString,4,1) = ' ' AND LEFT(rMyString,3) NOT LIKE '%[^0-9]%' THEN REVERSE(STUFF(rMyString,1,4,''))
ELSE MyString END
FROM SampleData
CROSS APPLY (SELECT rMyString = REVERSE(RTRIM(MyString))) d



“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden
Exploring Recursive CTEs by Example Dwain Camps
Eirikur Eiriksson
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Guitar_player (9/1/2014)
Eirikur Eiriksson (9/1/2014)
Here is another method, find the last character which is not space or numeric
Cool


Hi Eiriksson,

There are also quite records like 'ABC DEF 210 ' , 'ggh / sah ggh 590'...
So does the logic applies for these too ?

If possible can i get any function directly for these ..to check if the last digits are numbers ..if they are numbers then delete them and also the sapce and if not Trim the last space

Thanks & Regards,
Guitar Player


That should be no problem, the code trims the string to the last Alpha character in the string

This set
 (1,'ABCD 123')
,(2,'XY 567')
,(3,'ghj 001')
,(4,'RUT')
,(5,'PUT')
,(6,'ABC DEF 210')
,(7,'ggh / sah ggh 590')
,(7,'ABC 123 DEF 456')


becomes this
ID          CLEAN_COL
----------- -----------------
1 ABCD
2 XY
3 ghj
4 RUT
5 PUT
6 ABC DEF
7 ggh / sah ggh
7 ABC 123 DEF

sateeshcvtly
sateeshcvtly
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Hi,

I think below one will be the easiest way to query your data

SELECT <Col_Name>,CASE WHEN PATINDEX('%[0-9]%',REVERSE(<Col_Name>Wink)>0
THEN RTRIM(SUBSTRING(<Col_Name>,1,LEN(<Col_Name>Wink-(PATINDEX('%[0-9]%',REVERSE(<Col_Name>Wink))-2)) -- Please note, we have considered 3 numeric digits in this case
ELSE RTRIM(<Col_Name>Wink END AS New_String from <table>
Guitar_player
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sateeshcvtly (9/2/2014)
Hi,

I think below one will be the easiest way to query your data

SELECT <Col_Name>,CASE WHEN PATINDEX('%[0-9]%',REVERSE(<Col_Name>Wink)>0
THEN RTRIM(SUBSTRING(<Col_Name>,1,LEN(<Col_Name>Wink-(PATINDEX('%[0-9]%',REVERSE(<Col_Name>Wink))-2)) -- Please note, we have considered 3 numeric digits in this case
ELSE RTRIM(<Col_Name>Wink END AS New_String from <table>


Hey .. thanks yaar . That did the Trick :-)
Go


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