Question
If all roses are flowers, and some flowers are red, can
we conclude that some roses are red?Solution
Explanation:Â Since all roses are flowers and some flowers are red, it follows that some roses are red.
Which of the following statements about SQL `INDEXES` is generally TRUE?
What is the main function of a PL/SQL `TRIGGER`?
Which SQL keyword is used to remove duplicate records from a query result?
In normalization, which normal form removes transitive dependencies?
Which of the following is a key characteristic that distinguishes a PL/SQL `FUNCTION` from a PL/SQL `PROCEDURE`?
Which index type is most beneficial for queries that use range predicates (e.g., WHERE age BETWEEN 20 AND 30)?
Which SQL constraint ensures that a column’s values are unique across the table?
Which SQL clause is used for filtering rows?
What is the correct sequence of operations for using an explicit PL/SQL cursor?
Which of the following SQL constructs avoids returning duplicate rows?
