Redundancy should always be questioned
- Imagine there are more columns for albums and labels.
- Strongly suggests redundant storage of information.
- Non-redundant storage is possible, but unlikely.
- Storage is cheap, and "wasting" space can be justified
sometimes.
- But the redundancy is at least questionable because of this
waste.
Scripts
- Run schema_1.sql, populate_1.sql to setup.
- From queries_1.sql, run queries showing redundancy (with and
without DISTINCT).