Can you list the main types of table joins in SQL?

Main types of table joins in SQL:

• INNER JOIN — returns only the records that have matches in both tables.
• LEFT JOIN (LEFT OUTER JOIN) — returns all records from the left table and matching records from the right; if there are no matches, NULLs will appear on the right side.
• RIGHT JOIN (RIGHT OUTER JOIN) — returns all records from the right table and matching records from the left; if there are no matches, NULLs will appear on the left.
• FULL JOIN (FULL OUTER JOIN) — returns all records from both tables, filling NULLs where there are no matches.
• CROSS JOIN — Cartesian product of two tables, returning all possible combinations of records.

Example of INNER JOIN:

SELECT employees.name, departments.name
FROM employees
INNER JOIN departments ON employees.department_id = departments.id;