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Here are the different types of the JOINs in SQL:

  • (INNER) JOIN: Returns records that have matching values in both tables
  • LEFT (OUTER) JOIN: Returns all records from the left table, and the matched records from the right table
  • RIGHT (OUTER) JOIN: Returns all records from the right table, and the matched records from the left table
  • FULL (OUTER) JOIN: Returns all records when there is a match in either left or right table

SQL INNER JOIN  SQL LEFT JOIN  SQL RIGHT JOIN  SQL FULL OUTER JOIN

How to write a query using inner join between two tables ?

SELECT columns
FROM table_1
INNER JOIN table_2
ON table_1.column = table_2.column;

Table 1 has a primary column which is using as a foreign key(column) in Table 2

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