Credit card database: what it is and why it matter
A credit card database is a structured collection of data related to credit cards. It stores information like card numbers, card types, issuing banks, expiry details, and BIN (Bank Identification Number) records.
Think of it as a giant reference library. When someone uses a card to make a payment, a system queries this database to check whether the card is valid, which bank issued it, and what kind of card it is.