What different of iner joint & outer joint with example
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Answer Posted / joel
inner join will select the record that are match only. it is
just like equi join. but outer join select the record not
only the equal one but also select the not equal one.
outer join is of three type namely
right outer,
left outer and
full outer.
1) right outer join will be like below in the join condition
e.deptno(+)=d.deptno.
that is it select all the uncommon values including common
values from the table e.
2)while left outer join will be like below in the join condition
e.deptno=d.deptno(+);
it will select uncommon values including common values
from table d.
3) full outer join is as like inner join. it will select
common values only
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