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Convert to logical 1 or 0

 
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danm
Intermediate


Joined: 29 Jun 2004
Posts: 170
Topics: 73
PostPosted: Fri Nov 10, 2006 4:16 pm    Post subject: Convert to logical 1 or 0 Reply with quote
Column X may have any of these values: 'A', 'B','C' or 'D'. I want to show a logical '1' when columnX = 'B' and '0' for all others. This will work:
Code:

SELECT
    CASE COLX
        WHEN 'B' then 1
        Else 0
    END


Is there other way to produce the same result?
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12383
Topics: 75
Location: San Jose
PostPosted: Fri Nov 10, 2006 4:25 pm    Post subject: Reply with quote
danm,

Try this untested sql

Code:

SELECT TRANSLATE(COLX,'1','B0','1')
  FROM TABLE                         
  ;         


Check this link for detailed explanation of the TRANSLATE scalar function

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DSNSQH11/3.2.86?SHELF=&DT=20010718164132&CASE=


Hope this helps...

Cheers

Kolusu
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danm
Intermediate


Joined: 29 Jun 2004
Posts: 170
Topics: 73
PostPosted: Mon Nov 13, 2006 9:06 am    Post subject: Reply with quote
Kolusu,

The result from your query is:
Code:

COL1  COL2
----  ----
A     A
B     1
C     C
D     D


The following will work:
Code:

SELECT COL1,
TRANSLATE(COL1,'1000','BACD')
FROM TABLE;


But this is not really exactly I am lookin for. I don't want to list every possible characters (may be unlimited) in the translation string.
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