Can you name the main types of table joins in SQL that you use to combine data?

The main types of SQL joins for combining data from multiple tables:

• INNER JOIN — returns rows with matching values in both tables.
• LEFT JOIN (LEFT OUTER JOIN) — returns all rows from the left table and matching rows from the right; if no match, NULLs are used.
• RIGHT JOIN (RIGHT OUTER JOIN) — returns all rows from the right table and matching rows from the left.
• FULL JOIN (FULL OUTER JOIN) — returns all rows from both tables, filling with NULLs where there are no matches.
• CROSS JOIN — Cartesian product of two tables, each row of the first table is combined with each row of the second.

Example of INNER JOIN:

SELECT users.name, orders.id
FROM users
INNER JOIN orders ON users.id = orders.user_id;

This query returns user names and their orders only if the user has orders.