IBM Mainframe Forum

It looks like someone messed up when deciding to change the licence.

Did you look at the manuals? Try google?

Ditto what Dick said. Probably will work in the new/current days too.

Please suggest me which algorithm cobol internal sort uses while sorting afile

Implementation (of compiler) dependent.

On the Mainframe, Cobol just uses the installed Sort package.

I think you have to either buy the full licence, or ensure your files where you are using a Cobol SORT are not too big for it to work. This may include replacing the Cobol SORT by an external SORT, which I know you don't want to do

If you try to do your own "sort" and attempt to get it relatively efficient, you will probably expend much more time doing that than by doing something else...

The sorting of file above 2 GB is running fine with free fujitsu run time when we make following changes to input file-

The input file(having 2.10 GB) is having following type of record-

The sorting order is -
1.first on (3:25) bytes - this filed can be alpha numeric
2. then on 1: 2 bytes-this field is numeric
3 then 26:25 bytes- this filed is alphanumeric

if we change trailer record from 99999999999 to ZZZZZZZZZZZ , then program ran fine and output file is sorted perfectly.I think this temporary fix and not the exact root cause.

Hope anyone may suggest further on this behaviour.

If you can reproduce that, then report it to Fujitsu. If you send them data, don't include anything that looks like genuine data.