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Card 1 of 25

In a flat-file orders CSV, a customer's email is repeated in five records. What happens when it changes?

A

Only the most recent email copy must be updated.

B

Every duplicate email copy must be updated.

C

A new email column must be added to each record.

D

The first email copy automatically updates the others.

Card 1 of 25

Databases Flashcards

  1. A Level
  2. /Computer Science
  3. /Databases

25 flashcards on OCR A Level Computer Science Databases: the key terms and definitions you need to recall.

Flashcards