Re: SQLerror on field but shouldn't reference it

Try some derivative of:

select mychar, nbrdate from rob/rick 
where 
(CASE WHEN nbrdate=' ' then 0 
ELSE 
days(substr(nbrdate, 1, 4) || '-' || substr(nbrdate, 5, 2) || '-' ||
substr(nbrdate, 7, 2)) 
END) 
> (days(char(curdate())) - 365) 
order by mychar desc, nbrdate 

Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin 




"Chevalier, Rick" <Rick.Chevalier@americredit.com>
Sent by: midrange-l-bounces@midrange.com
02/06/2003 04:57 PM
Please respond to Midrange Systems Technical Discussion
 
        To:     "Midrange Mailing List (E-mail)" <midrange-l@midrange.com>
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        Subject:        SQLerror on field but shouldn't reference it


I am receiving an error running the following SQL statement:
select lnnote, lnstat, lnpnbr from lnp00301 
where lnstat <> 'C' or lnnote in 
(select lnnote from lnp00301 where (lnstat = 'C' and

days(substr(lnpnbr, 1, 4) || '-' || substr(lnpnbr, 5, 2) || '-' ||
substr(lnpnbr, 7, 2)) > (days(char(curdate())) - 365))) 
order by lnstat desc, lnpnbr 

The error I receive is 'Selection error involving field LNPNBR.' 
Displaying
the message identifies the record number and refers me to the job log. The
job log contains this message:
Message ID . . . . . . :   CPD4019       Severity . . . . . . . :   10

Message type . . . . . :   Diagnostic

Date sent  . . . . . . :   02/06/03      Time sent  . . . . . . : 15:31:34

 

Message . . . . :   Select or omit error on field LNPNBR member LNP00301.

Cause . . . . . :   A select or omit error occurred in record 1042912,
record
  format LNP0031, member number 1 of file LNP00301 in library BNKPRD08,

  because of condition 6 of the following conditions:

    6 - A data mapping error occurred on the field before the select or 
omit
operation was attempted.

The values for record 1042912 are:
Record#  LNBK LNNOTE        LNSTAT LNPNBR 
1042912    8     123456789 

My question is this.  I realize that LNPNBR is blank for this record and
would not be valid for the days function in the subselect but the LNSTAT
field is blank also so it would pass the initial test of LNSTAT <> 'C'. 
Why
is SQL trying to perform a numeric operation on this record?  It seems to 
me
that it would stop after passing the LNSTAT <> 'C' test.  What am I 
missing?


Rick Chevalier
Sr. Programmer Analyst

rick.chevalier@americredit.com

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