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MySQL NATURAL JOIN Tutorial & Examples

This tutorial explains how you can use NATURAL JOINs and what a natural join is actually. Included are syntax details and example statements.

Generally speaking, the keyword NATURAL can be treated as a join condition which is added implicitly. If used, it replaces the keywords ON and USING altogether. In MySQL writing natural joins means adding the keyword NATURAL to either an INNER JOIN or an OUTER JOIN. Let’s take a look at how a natural join implies a join condition.


First of all, some natural join syntax examples. As mentioned earlier, a natural join adds a implicit condition to inner and outer join statements:

-- natural inner …
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