Oracle Database SQL — Question 248

Which three statements are true about the Oracle join and ANSI join syntax? (Choose three.)

Answer options

• A. The Oracle join syntax supports creation of a Cartesian product of two tables.
• B. The Oracle join syntax only supports right outer joins.
• C. The SQL:1999 compliant ANSI join syntax supports creation of a Cartesian product of two tables.
• D. The Oracle join syntax performs less well than the SQL:1999 compliant ANSI join syntax.
• E. The Oracle join syntax supports natural joins.
• F. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax.
• G. The SQL:1999 compliant ANSI join syntax supports natural joins.

Correct answer: A, C, G

Explanation

The correct answers A, C, and G highlight the capabilities of both Oracle and SQL:1999 compliant ANSI join syntax regarding Cartesian products and natural joins. Option B is incorrect because the Oracle join syntax supports more than just right outer joins, while D and F contradict each other regarding performance, making them invalid choices.