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Meaning of INNER JOIN

 
Computing Dictionary
 
 Definition: 

(Commonly "join", but see also "outer join") A relational database operation which selects rows from two tables such that the value in one column of the first table also appears in a certain column of the second table.

An example in sql:

        select * from A, B
        where A.x = B.y

The column names (x and y in this example) are often, but not necessarily, the same.

 

 

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