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Archives of the TeradataForumMessage Posted: Mon, 25 Apr 2005 @ 20:53:11 GMT
<-- Anonymously Posted: Monday, April 25, 2005 15:10 --> We have some users on our system who need to know the "type" of credit card and information about transactions by a particular credit card using a "surrogate" card number, without knowing the actual card number. We desire to mask credit card numbers residing in a transaction history table where: (1) new numbers are continually added i.e. the list of numbers is not static; (2) the number is not the primary index of a table; (3) the same ID number needs to translate to the same "surrogate" value every time; and (4) we do not maintain a separate table of unique card numbers. Can anyone offer useful info on what may be the best approach on Teradata? Thanks, Anony.
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