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What are joins..how many types of joins are there?
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Basically join's are three type's those are :
1.Cross join
2.Equi join
a.Natural join
b.inner join
c.outer join(Simple join)
i.Left outer join
ii.Right outer join
iii.Full outer join
d.Self join
3.Non-equi join
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / prabhat shukla
Basically there are three types of join
1.Inner join
2.Outer join
3.self join
and there are two types of join based on condition.
1.equi-join(if we use equal operator while joining tables)
2.Non-equi-join( if we use other than equal operator while
joining tables.(this on is rarely used.)
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sourabh sharma
=>INNER JOIN: Return rows when there is at least one match
in both tables
=>LEFT JOIN: Return all rows from the left table, even if
there are no matches in the right table
=>RIGHT JOIN: Return all rows from the right table, even if
there are no matches in the left table
=>FULL JOIN: Return rows when there is a match in one of the
tables
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / tauqueer
Joins means we can join two or more then two table in
single query.
there are 3 types of join..
1. INNER JOIN.
2. OUTER JOIN.
1.Left outer join.
2.right outer join.
3.full outer join.
3. CROSS JOIN.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / m.sivakumar
joins is a that combines the rows from two or more tables
joins are 5 types
1.cross join
2.equi join or inner join
3.outer join
4.self join
5.non_equi join
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / niranjan.b
In sql joins are 3 types
1.Inner join
2.Outer join
a)left outer join
b)right outer join
c)full outer join
3.Cross join
| Is This Answer Correct ? | 0 Yes | 2 No |
Answer / guruswamy
join is combaining two or more tables.
there are three types.they are
1).simple join
2).self join
3).3.outer joins
| Is This Answer Correct ? | 15 Yes | 21 No |
Answer / ron
looks like one important is left out:
guess what it's
cartesian join.
| Is This Answer Correct ? | 12 Yes | 35 No |
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