Netradyne Technology Technical Support Engineer Interview Questions and Answers

Joins are used in databases to combine rows from multiple tables based on a related column between them.

• Joins are used to retrieve data from multiple tables in a single query.

• They are based on a related column between the tables.

• Common types of joins include inner join, left join, right join, and full outer join.

• Inner join returns only the matching rows between the tables.

• Left join returns all rows from the left table ...read more