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Open Access Technology International

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Domanda di colloquio di Open Access Technology International

Whats an inner and outer join.

Risposte di colloquio

Anonimo

16 mar 2014

Inner join is a simple join that selects all records from the multiple tables as long as there is a match between the columns.

Anonimo

16 mar 2014

Outer join: returns all the records from the two joined tables even if no matching record exists.