🔍SQL joins are used to combine data from multiple tables based on a common column.
🔀Inner join is the most basic type of SQL join, combining only the matching records from both tables.
⬅️Left join returns all the records from the left table and the matching records from the right table.
➡️Right join returns all the records from the right table and the matching records from the left table.
↔️Full outer join returns all the records from both tables, matching and non-matching.
What are SQL joins used for?
—SQL joins are used to combine data from multiple tables based on a common column. They allow us to access related information stored in different tables.
What is an inner join?
—An inner join returns only the matching records from both tables, based on the specified join condition.
What is a left join?
—A left join returns all the records from the left table and the matching records from the right table, based on the specified join condition.
What is a right join?
—A right join returns all the records from the right table and the matching records from the left table, based on the specified join condition.
What is a full outer join?
—A full outer join returns all the records from both tables, including matching and non-matching records, based on the specified join condition.
02:56SQL joins are used to combine data from multiple tables based on a common column.
04:28Inner join is the most basic type of SQL join, combining only the matching records from both tables.
05:52Left join returns all the records from the left table and the matching records from the right table.
06:38Right join returns all the records from the right table and the matching records from the left table.
08:54Full outer join returns all the records from both tables, matching and non-matching.
