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What is TRUE about Keys?

1. What is TRUE about Keys?

1. Relational databases rely heavily on keys
2. Any row or record in the table can be uniquely identified with this field
3. Relationships between tables can also be established using it
4. All of the above

Answer: D) All of the above

Explanation:

In case of Keys -

1. Relational databases rely heavily on keys
2. Any row or record in the table can be uniquely identified with this field
3. Relationships between tables can also be established using it