DBI202Xuất hiện trong 1 đề thi
When converting a multivalued attribute from an ER model to a relational model using 1NF normalization, what is the most appropriate approach?
Các lựa chọn
AKeep it in the main table and store it as an array.
BCreate a separate new table for that attribute and link it using a foreign key.
CConvert it to a derived attribute.
DCombine all values into a single column separated by commas.