Relier Pairs Data ValidationVersion en ligne Types of validation par Miss Butler 1 Lookup table 2 Check digit 3 Format check 4 Presence check 5 Spell check 6 Range check 7 Length check checks that data has been entered into a field checks the data isn't too short or too long the last one or two digits in a code are used to check the other digits are correct checks that a value falls within the specified range looks up words in a dictionary checks the data is in the right format looks up acceptable values in a table