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What is TRUE about Relational Database?

9. What is TRUE about Relational Database?

1. Relational databases store information in rows (tuples) and columns (attributes), which create tables (relations).
2. Data is stored, manipulated, and maintained using SQL in a relational database
3. Tables in the database contain unique keys that identify them from other tables.
4. All of the above

Answer: D) All of the above

Explanation:

The following statements are TRUE about Relational Database –

1. Relational databases store information in rows (tuples) and columns (attributes), which create tables (relations).
2. Data is stored, manipulated, and maintained using SQL in a relational database
3. Tables in the database contain unique keys that identify them from other tables.