80 likes | 452 Views
Types of validation. By Paris Alderman . Range check. Checks that a value is in a given range. . Length check . Checks that a value has a certain maximum length. . Lookup check . Checks that data takes one of a set of predefined values . Presence check .
E N D
Types of validation By Paris Alderman
Range check Checks that a value is in a given range.
Length check Checks that a value has a certain maximum length.
Lookup check Checks that data takes one of a set of predefined values
Presence check Ensures that data is entered in to a field.
Format check Checks that individual characters within the data are valid.