Discussion
The relational model feature is that there
Answer: B
The feature of the relational model is that there is much more data independence than some other database models.
In the relational model, data is seen only as tables of values, and relationships are expressed through matching values rather than physical links. Programs therefore depend far less on how the data is stored than in the hierarchical and network models, whose explicit pointer-based relationships tie programs to the storage structure.
The relational model does use primary keys, it has no explicit record-to-record links, and its tables are two-dimensional, so the other options are wrong.
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