I have been given the 'pleasure' of masking data in a text file that is 160MB in size with 1.25M records. The format is (yes the delimiter is ¦¦):
Can anybody recommend the easiest way to mask\amend certain columns for all the records. So for example I'd like to replace the FIRST_NAME, LAST_NAME and address columns with dummy data (preferably with sequential numbering but not essential)?
So it would end up like this:
12343¦¦F_NAME1¦¦LAST_NAME1¦¦Address 1¦¦Address 1¦¦Address 1¦¦Address 1¦¦Address 1¦¦Address 1¦¦Address 1¦¦P_CODE1,25/05/1967¦¦MARRIED¦¦NULL
12343¦¦F_NAME2¦¦LAST_NAME2¦¦Address 2¦¦Address 2¦¦Address 2¦¦Address 2¦¦Address 2¦¦Address 2¦¦Address 2¦¦P_CODE2,02/08/1998¦¦SINGLE¦¦NULL
I tried using Excel 2010 but it can only load 1048576 records.