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SQL Join Types

ITech Analytic Solutions
30/12/2016 0 0

There are four basic types of SQL joins: inner, left, right, and full. The easiest and most intuitive way to explain the difference between these four types is by using a Venn diagram, which shows all possible logical relations between data sets. 

1. Inner Join
2. Left Join
3. Right Join
4. Full Join

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