Hello everyone, I have a requirement to compare two large files based on some conditions and create a new file out of those. These two files are two different layouts, my condition should compare 2nd field of the first file and 5th field of the second and pullout a record from the second file if the IDs matches. Initially I've done this by loading files into two arrays and do a loop on those and filter. But my files are very huge - say 1GB , where each have 10 million records, and my execution ran out of memory. then I tried with Tie::File , but this only saved my memory but not the performance. My process is still running with no signs of ending :) Can someone help me solving this ??? Its urgent and I'm new to Perl.....

In reply to Compare two Large FlatFiles by suneel.reddy

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