I tried doing this through sequential processing and doing the search of substring.
But File A and File B both contains approximately 5 millions of records.
So my job takes around 24 hous which is not feasibe at all.
Let me know how I can do this with reasonable performance.
The problem is not with the search.
I have tried using different logic involving, inspect, string etc.
My programms works fine.
But the approach with the cobol inspect etc is not feasible as 5 millins records are present in both files which leads to 24 hours of job execution.
Honestly ur logic is still unclear,bcos of the 3 records in ur output file with 2 records in each of the Input file. INSPECT can be very expensive for complex string operations. So can you show me the code that u tried with out the INSPECT Function.