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  1.  Home
  2. RPG400-L
  3. March 2005

Re: Last Record in Sequential File

Another method is like below, although the *end method is self documenting, anyway it's a method I used years ago to retrieve
the last record from batches of data imported from a UNIX box:

     FFileName  if   f 1024        disk    InfDS( OpnFBK )
.............
     D OpnFBK          DS
      * This is the number of records in file.
     D LstRecNum             156    159I 0
.............
      * Program initialization subroutine
     C     *INZSR        BEGSR
     ‚* Retreive batch number from trailer record, It will be the
     ‚* 10 bytes following the 2nd 'TAB' character.
     C     LstRecNum     chain     FileName

C Do 2
C Eval WrkPos = %Scan( @Tab :@ImpRec: 

     C                                                   WrkPos+1 )
     C                   EndDo

     C                   Eval      BatchNbr = %Subst( @ImpRec : WrkPos+1
     C                                                        : 10 )

     ‚* Position file cursor to before 1st record.
     C     1             SetLL     FileName

     C                   EndSr
.............


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