Which type of SQL join can be used to detect rows in one table that have no corresponding rows in another?

SQL Data Analyst Hard

SQL Data Analyst — Hard

Which type of SQL join can be used to detect rows in one table that have no corresponding rows in another?

Key points

  • LEFT JOIN is used to include all rows from the left table and matching rows from the right table.
  • WHERE right_table.id IS NULL filters out rows with no corresponding values in the right table.
  • This approach helps identify missing relationships between tables.

Ready to go further?

Start full exam Practice more questions

Related questions