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Extract 'n'th digit from a interger value using Sql query


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abraralum

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Joined: 19 Dec 2010
Posts: 42
Location: Bangalore

PostPosted: Sat Oct 15, 2011 6:04 pm
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Hi ,

From the integer field emp_no = 123456789, I am trying to extract 8th digit i.e, in my int field it is value 8.

Through googling .. I got some thing about CAST,right functions.. and coded something like below ..

SELECT
CAST(RIGHT(CAST(emp_no AS CHAR),1)AS INT)
from table name where emp_no = 123456789.

However this is resulting in below error :
Code:

SQLCODE = 445, WARNING:  VALUE 123456789 HAS BEEN TRUNCATED


Is it possible to extract nth digit using a query. Please advice .. any pointers will be greatly helpful.[/code]
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dbzTHEdinosauer

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Joined: 20 Oct 2006
Posts: 6966
Location: porcelain throne

PostPosted: Sat Oct 15, 2011 6:40 pm
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suggest using DIGITS and then extract your 8th char with SUBSTR.

instead of googling for a solution,
RTFM (Read The Fine Manual), then you can build your skill-set so that you can answer future classroom exercises.
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GuyC

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Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Mon Oct 17, 2011 1:04 pm
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the behaviour of CHAR() is changing.
It used to give leading zeroes, it wil not in the future
char(integer(12345)) can be '000012345' or '12345'
the eight digit of an integer is thus an ambiguous request.
if you want the "tenths' you could use mod(integer(12345/ 10),10).
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jerryte

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Joined: 29 Oct 2010
Posts: 202
Location: Toronto, ON, Canada

PostPosted: Wed Oct 26, 2011 10:58 pm
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Do you want 8th digit from the left or from the right? What if the number is less then 8 digits?

If it is from the left you can use the below
SUBSTR(CHAR(EMP_NO), 8, 1)
This will give you a space if the number is less then 8 digits
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