Database fields as part of Data Structure in a Service program getting blanked out

30 pts.
Tags:
AS/400
OS/400 V6R1
I've a file HPHOSP having patient details. It has 8 fields to store diagnosis codes - LPCD01, LPCD02....LPCD08. I've declared these fields as a part od DS so that these can be accessed by array LPCD.

Now in my program, when I chain file HPHOSP, then all fields fo file has correct value but these 8 fields (LPCD*) always has blank value, although these are non-blank in database file.

The above code is part of a procedure. File HPHOSP is declared in F-specs at global level and not inside procedure. And this procesure is part of a service program.

What could be the reason for this:

1. Is it because file is declared in global F-specs and not inside procedure definition?

2. This is part of service program that is inducing some error?

3. Any other reason.

0085.00      D                 DS                                     0086.00      D  LPCD                   1     64                       0087.00      D                                     DIM(8)             0088.00      D  LPCD01                 1      8                       0089.00      D  LPCD02                 9     16                       0090.00      D  LPCD03                17     24                       0091.00      D  LPCD04                25     32                       0092.00      D  LPCD05                33     40                       0093.00      D  LPCD06                41     48                       0094.00      D  LPCD07                49     56                       0095.00      D  LPCD08                57     64                      

 

 



Software/Hardware used:
AS400. OS/400 V6R1
ASKED: February 6, 2012  11:04 AM
UPDATED: March 17, 2012  1:51 AM

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  • philpl1jb
    0085.00      D                 DS                                    
    0086.00      D  LPCD                   1     64                       
    0087.00      D                                                      DIM(8)             
    0088.00      D  LPCD01                 1      8                       
    0089.00      D  LPCD02                 9     16                       
    0090.00      D  LPCD03                17     24                       
    0091.00      D  LPCD04                25     32                       
    0092.00      D  LPCD05                33     40                       
    0093.00      D  LPCD06                41     48                       
    0094.00      D  LPCD07                49     56                       
    0095.00      D  LPCD08                57     64       
    
    This might make the code a bit clearer.
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  • philpl1jb
    This is part of a procedure. Is the F spec and chain in a different procedure? Does the F spec include a PreFix keyword?
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  • TomLiotta
    Since LPCD is defined as 64 bytes in length, it appears that you want an array that is 512 bytes long. (I.e., DIM(8) * 64 = 512 ) But your file fields are only 8 bytes long...? So, do you really want all of your file fields to overlay just the first element of your array? If the LPCDnn fields are in a subprocedure, how are you putting the values from the file into those fields? They won't be populated by reading records. You can't define a memory layout in a subprocedure that affects where the main procedure stores its data. The fields in the subprocedure are different variables from those in the main procedure, even though they might have the same names. Tom
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  • philpl1jb
    Yup, Tom has got it, he always does. LPCD should be 8A DIM(8) and if you move the structure to the mainline or pass the variables to the procedure you'll be cooking. Variables like LPCD01 defined in a procedure are local (even if they have the same name as a global variable they don't share a memory area or data. That's the scope thing. webcam.on.Phil
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