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Sunday, 3 November 2013


Different SQL JOINs
Before we continue with examples, we will list the types of JOIN you can use, and the differences between them.


JOIN

Return rows when there is at least one match in both tables

LEFT JOIN

Return all rows from the left table, even if there are no matches in the right table

RIGHT JOIN: 

Return all rows from the right table, even if there are no matches in the left table

FULL JOIN

Return rows when there is a match in one of the tables

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