Answer / khaleek

There are only three type of joins
1) Equi Join
2) Non Equi Join
3) Cartesian Product or Cross Join.

Further Equi Join and Non Equi join can be divided into
following categories.
1) Inner Join
2) Outer Join
3) Self Join

Again Outer can be divide into following categories.
1) Left Outer Join
2) Right Outer Join
3) Full Outer Join

For detail please see at
<a
href="http://interview-preparation-for-you.blogspot.com/2010/11/difference-between-inner-joinouter-join.html">http://interview-preparation-for-you.blogspot.com/2010/11/difference-between-inner-joinouter-join.html</a>

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