RE: How IS the Record Format Level Identifier calculated?

You do have a difference, default value of none and no default value
specified, which equals blank on a character field. So the field
properties are different.


Christopher Bipes
Information Services Director
CrossCheck, Inc.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Wednesday, September 27, 2006 12:04 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