Two motorists start together to travel to a certain

Which SQL clause is used to group rows?

Which SQL keyword prevents duplicate rows in result?

Materialized views differ from normal views because:

What is the output of this SQL snippet if the price column contains NULL values?

SELECT SUM(price) FROM products;

Recursive CTEs are mainly used for:

In SQL, the ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW clause applies to:

Which SQL clause is used for filtering rows?

A materialized view differs from a normal view because it:

Which command removes all rows but keeps table structure?

Which of the following can be used to avoid duplicate entries in a column?