RE: How IS the Record Format Level Identifier calculated?

It's likely that the date and time file was created is also used in the
algorithm so unless those files were somehow magically created at the
exact same millisecond, they wouldn't be the same FLI anyway.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Wednesday, September 27, 2006 2:04 PM
To: midrange-l@xxxxxxxxxxxx
Subject: How IS the Record Format Level Identifier calculated?

Here's the great mystery to solve.  Just exactly how IS the Record
Format 
Level Identifier calculated?

Some say it's a hash of the field properties and the record format name.

However, if that is true then I shouldn't have this:

File JEFF1
Record Format Information 
  Record format . . . . . . . . . . . . . . . :  JEFF1 
  Format level identifier . . . . . . . . . . :  1F394C6EFF0A2 
  Number of fields  . . . . . . . . . . . . . :      2 
  Record length . . . . . . . . . . . . . . . :     20 
Field Level Information 
             Data        Field  Buffer    Buffer        Field    Column 
  Field      Type       Length  Length  Position        Usage    Heading
  MYCHAR     CHAR           15      15         1        Both     MYCHAR 
    Coded Character Set Identifier  . . . . . :     37 
  MYDEC      PACKED       9  2       5        16        Both     MYDEC 

File JEFF2
Record Format Information 
  Record format . . . . . . . . . . . . . . . :  JEFF1 
  Format level identifier . . . . . . . . . . :  1F394C77030E2 
  Number of fields  . . . . . . . . . . . . . :      2 
  Record length . . . . . . . . . . . . . . . :     20 
Field Level Information 
             Data        Field  Buffer    Buffer        Field    Column 
  Field      Type       Length  Length  Position        Usage    Heading
  MYCHAR     CHAR           15      15         1        Both     MYCHAR 
    Default value . . . . . . . . . . . . . . :  None 
    Coded Character Set Identifier  . . . . . :     37 
  MYDEC      PACKED       9  2       5        16        Both     MYDEC 
    Default value . . . . . . . . . . . . . . :  None 

Rob Berendt