What is a join in sql? What are the types of joins?
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Answer Posted / Ankur Jain
In SQL, a JOIN clause is used to combine rows from two or more tables based on a related column between them. This allows you to retrieve data that spans multiple tables while maintaining their relationship. There are four main types of joins: INNER JOIN (returns only the matching rows), LEFT OUTER JOIN (includes all the records from the left table and the matching records from the right table), RIGHT OUTER JOIN (includes all the records from the right table and the matching records from the left table), and FULL OUTER JOIN (includes all the records when there is a match in either the left or the right table).
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