Types of Join

What is Join?

Join is an operation in DBMS(Database Management System) that combines the row of two or more tables based on related columns between them. The main purpose of Join is to retrieve the data from multiple tables in other words Join is used to perform multi-table queries. It is denoted by ⨝....

SQL JOIN Example

Consider the two tables below as follows:...

Types of Join

There are many types of Joins in SQL. Depending on the use case, you can use different types of SQL JOIN clauses. Here are the frequently used SQL JOIN types:...

1. Inner Join

Inner Join is a join operation in DBMS that combines two or more tables based on related columns and returns only rows that have matching values among tables. Inner join of two types....

2. Outer Join

Outer join is a type of join that retrieves matching as well as non-matching records from related tables. These three types of outer join...

Conclusion

In the field of Database Management Systems, Join is a very important tool for retrieving data from multiple tables simultaneously. Learning and understanding join syntax and types of syntax including inner and outer joins is very efficient for writing queries for databases and extracting valuable understanding....

Frequently Asked Questions on Joins – FAQs

What is the primary purpose of a join operation in DBMS?...