60. AQA GCSE (8525) SLR10 – 3.2 Data validation
About this video
AQA Specification Reference - Section 3.2.11
Data is not always entered in ways that a program might expect. To prevent invalid data crashing a program, validation techniques are used to check data before it is processed. This video explores a range of simple data validation methods.
Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.
00:00 Data validation
00:04 Intro
00:09 Input validation
00:23 Type check
01:09 Range check
01:30 Presence check
01:55 Format check
02:22 Length check
02:51 Recap
03:01 Outro
Last updated: 01.05.25
