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Converting field from char to number

 
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danylele74

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Joined: 03 Jul 2014
Posts: 27
Location: Italy

PostPosted: Tue Mar 29, 2016 4:24 pm    Post subject: Converting field from char to number
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Hi all,

i need to convert a field of a table from char to number with a SELECT statement.

Input field (char 20):

Code:
'7                   '
'24                  '
'155                 '
'3876                '
'74567               '


Output field

Code:
00007
00024
00155
03876
74567


I need ONLY the first five digits.

Thank you
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danylele74

New User


Joined: 03 Jul 2014
Posts: 27
Location: Italy

PostPosted: Tue Mar 29, 2016 4:52 pm    Post subject:
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I have found this:

Code:
SELECT RIGHT(REPEAT('0', 5) || RTRIM(CHAR(table_field)), 5)


it seems to work but only if the input field (CHAR) there are numbers, otherwise .....
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danylele74

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Joined: 03 Jul 2014
Posts: 27
Location: Italy

PostPosted: Tue Mar 29, 2016 4:55 pm    Post subject:
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The maximun output length is 5 (five) digits.
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Marso

REXX Moderator


Joined: 13 Mar 2006
Posts: 1250
Location: Israel

PostPosted: Tue Mar 29, 2016 4:58 pm    Post subject:
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If you are sure that you have only numbers and spaces in this column, you can try:
Code:
INT(YOUR_CHAR_COLUMN)

(Instead of INT you can use BIGINT or DEC).
In all cases, there are restrictions:
Quote:
The string must contain a valid string representation of a number.
Leading and trailing blanks are eliminated and the resulting string must conform to the rules for forming an integer constant.
Once it works, try:
Code:
DIGITS(INT(YOUR_CHAR_COLUMN))

and then
Code:
SUBSTR(DIGITS(INT(YOUR_CHAR_COLUMN)),6,5)
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Rohit Umarjikar

Senior Member


Joined: 21 Sep 2010
Posts: 1827
Location: NY,USA

PostPosted: Wed Mar 30, 2016 10:58 pm    Post subject:
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Also, this should give you what you want.
Code:
  select
LPAD(replace('7              ',' ',''),5,'0')
 from sysibm.sys1dummy
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