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Technical Article

Proper Luhn AddCheckDigit for any length #

Most of the luhn scripts assume that you are working with credit-cards and then IMPROPERLY calculate their luhn check-digit by starting at the left side (assuming that the core number is always 15 digits).  However, if you don't know the length of your core number, then such an approach will fail when the length is […]

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2006-10-10

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Question of the Day

PostgreSQL psql Meta Commands: Tables

Which of the following psql meta commands (also called backslash or slash commands) will provide information about tables within a database?

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