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SQL Codd's 12 Rules MCQs
Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?
2. Which of the following is TRUE about The Foundation Rule in the 12 Codd's Rules?
- Relational databases are required.
- Databases contain a wide variety of information, and each row and column of each table must hold this information.
- The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
- Null values are treated in database records according to this rule.
Answer: A) Relational databases are required
Explanation:
Relational databases are required in The Foundation Rule of 12 Codd's Rules. By using its relational capabilities, the system will be able to manage the database.