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This assessment focuses on mastering SQL joins, covering essential concepts like left, right, and full outer joins, as well as self joins. By testing your understanding of how to combine data from multiple tables, you\u2019ll...

Questions: 18 | Attempts: 19 | Last updated: Mar 26, 2026

Sample Question 1
What SQL command is used to combine rows from two or more tables based on a related column?

SELECT

JOIN

UNION

INSERT

Sample Question 2
Which type of join returns all records from the left table and matched records from the right table?

Inner Join

Left Join

Right Join

Full Outer Join

Sample Question 3
In a self join, which of the following is true?

It joins a table to itself

It requires two different tables

It cannot be used with conditions

It is the same as a cross join

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