Quiz on SQL WITH clause

What is the primary purpose of the WITH clause in SQL?

What keyword immediately follows WITH in a typical SQL query?

Can multiple CTEs be defined using a single WITH clause?

How long does a CTE defined using WITH last?

Which SQL statement is invalid inside a WITH clause?

What will this query return?

WITH high_salary AS (
SELECT name FROM employees WHERE salary > 80000
)
SELECT * FROM high_salary;

Which database system does NOT support the WITH clause before version 8.0?

What is the main difference between a subquery and a CTE using WITH clause?

Which of these is the correct syntax for a simple CTE?

Can a CTE be recursive using the WITH clause?

What is required in a recursive CTE to avoid infinite loops?

Which clause follows the CTE when writing the main query?

What will happen if a CTE is misspelled in the main query?

Which clause is mandatory in a recursive CTE?

Can a WITH clause be used in INSERT…SELECT operations