What is a OUTER JOIN?



What is a OUTER JOIN?..

Answer / parthasarathi

outer join is used to fetch unmatched records along with matched records..

there are 3 kinds of outer joins available.

1.Left outer join :- used to fetch unmatched records at left side table.

2.right outer join :- used to fetch unmatched records at right side table.

3.Full outer join :- used to fetch unmatched records at both side tables.

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