Answer Posted / shankar
2 types:
1. Inner Join
2. Outer Join
3. Cross Join
1. Inner Join: Inner Join displays matched rows.
2. Outer Join: Outer Join displays matched rows as well as
unmatched rows. Outer Joins again classifed into 3 types.
2a. Left Outer Join: Matched rows as well as left table
unmatched rows.
2b. Right Outer Join: Matched rows as well as right table
unmatched rows.
2c. Full Outer Join: Matched rows as well as left table
unmatched rows and right table unmatched rows.
3. Cross Join: It will display the cartegion product of the
tables.
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