Karteikarten
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Karten in diesem Stapel (6)
- 1WHAT DOES A RANGE CHECK DO?checks the data entered is in a sensible range
- 2WHAT DOES A TYPE CHECK DO?ensures that the data is the correct type
- 3WHAT DOES A FORMAT/PICTURE CHECK DO?if the data entered has a particular pattern e.g. a postcode or car reg then an input mask can be used to force the data to confirm
- 4WHAT DOES A LENGTH CHECK DO?the length of the input is checked for the number of characters used
- 5WHAT DOES A PRESENCE CHECK DO?checks that some data has been entered as it has to be
- 6WHAT DOES A LOOKUP LIST DO?if the data entered consists of a limited number of possible entries then the computer can compare the entry with a list allowed answers
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- Karteikarten am Ohne Titel, erstellt von aujlg001 am 11/02/2015.
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- aujlg001
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