Re: Reading to a DS

Mike Silvers wrote:
> 
> OK.  It is Friday -- finally.  I am having a problem with something that
> should be simple!  What I am doing is reading a file into a DS.  I am
> getting a compiler error that tells me that the data structure is not
> allowed in the operation.  My code is as follows:
> 
> FPRJ001L5  IF   E           K Disk    ReName(PRJ001R:PRJ001R5)
> F                                                         Prefix(L5:2)
> D PRJ001R5DS    E DS                  ExtName(PRJ001L5)
> D                                                          Prefix(D5:2)
>  /Free
>    read prj001R5 PRJ001R5DS;
> 
> The error is:
> *RNF7701 30    347 010500  Data structure PRJ001R5DS is not allowed for the
> operation.
> 

Mike, whenever you don't understand a compiler error message, try
recompiling with OPTION(*SECLVL).  Then you can see the message help in
the message summary.

Message . . . . :   The data structure is not allowed for the
operation.      
Cause . . . . . :   For operation codes CHAIN, READ, READC, READE,
READP,     
  READPE, and UPDATE, the data structure does not consist of the input
fields 
  of the specified file. For operation code WRITE, the data structure
does not
  consist of the output fields of the specified file. The data structure
is   
 
ignored.                                                                    
Recovery  . . . :   For an input operation, define the data structure
using   
  keyword LIKEREC, with the record name as the first parameter and
*INPUT as  
  the second parameter. For output operations, code *OUTPUT as the
second     
  parameter of LIKEREC. Compile again.

FPRJ001L5  IF   E           K Disk    ReName(PRJ001R:PRJ001R5)
F                                                         Prefix(L5:2)
D PRJ001R5DS      DS                  LikeRec(PRJ001R5)
 /Free
   read prj001R5 PRJ001R5DS;
   // PRJ001R5DS is qualified, so you would access PRJ001R5DS.fld1, 
   // PRJ001R5DS.fld2 etc.