WAEC - Data Processing (2022 - No. 18)
Table 2 can be derived from table 1 by
Segmentation
Replication
Redundancy
Fragmentation
Εξήγηση
Data redundancy is a data organization issue that allows the unnecessary duplication of data within your Microsoft Access database. A change or modification, to redundant data, requires that you make changes to multiple fields of a database.