Test Your SQL Skills with Our Self-Join Quiz!

Use one more INNER JOIN/ON combination than tables

Use the same number of INNER JOIN/ON combinations as tables

Use one less INNER JOIN/ON combination than tables (correct)

Use as many INNER JOIN/ON combinations as needed

When a table is joined with itself (correct)

When a table is joined with an external data source

When a table is joined with a subquery

When two different tables are joined

To avoid redundant rows in the result set (correct)

To include all possible rows in the result set

To avoid syntax errors

To speed up the query execution

<p>Joining a table of cities with itself on the state column</p> Signup and view all the answers

<p>To resolve ambiguity when column names exist in both tables</p> Signup and view all the answers