On Tue, Nov 3, 2009 at 6:27 PM, Siva Subramanian <[email protected]> wrote: > The trouble's different. How do i open two files, the Report_2_5 above > and also another one with the Customer IDs alone and look for rows > only for in Report_2_5 for it and process them alone
Insert all Customer IDs into a new hash table as hash keys. When you process Report_2_5, check if the Customer ID (key) exists in the hash. Eg. python: if customer_id in hash: blah... Hash key lookups are almost a constant time operation in all scripting languages and your code should work fast enough for most purposes. Please don't top post and use correct quoting in your posts. Read/follow mailing list guidelines. - Raja _______________________________________________ To unsubscribe, email [email protected] with "unsubscribe <password> <address>" in the subject or body of the message. http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
