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What is a OUTER JOIN?
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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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