On Sat, 11 Nov 2023 19:03:01 -0800, Ed Jaffe wrote:

>On 11/11/2023 6:40 PM, Paul Gilmartin wrote:
>> On Sun, 12 Nov 2023 02:16:07 +0000, Seymour J Metz wrote:
>>
>>> Solves what problem? Unix doesn't have records, so you have to impose your 
>>> own record structure and tell seek the byte offset.
>>>
>> He said FB.  That makes the calc simple.
>
>FB allows short blocks. FBS would be needed to do true skip-sequential.
>
He said "Unix".  In UNIX there are no short blocks, even if the file has been
appended repeatedly.

(I was focusing on the "F", not the "B".  QSAM/BSAM write to a UNIX file
loses the block boundaries.)

-- 
gil

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