What are joins..how many types of joins are there?
Answers were Sorted based on User's Feedback
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 |
4. Display the order number and client number from the ORDER table. Output the result in the format. Client <clientno> ordered <orderno>
What are the components of Logical database structure of ORACLE database?
How can windows applications connect to oracle servers?
Give the various rollback segment states.
what are archived logs?
Can we store pictures in the database and if so, how it can be done?
How do we create privileges in oracle?
What WHERE CURRENT OF clause does in a cursor?
How to specify default values in insert statement using oracle?
What is a View ?
What is an oracle?
How do we switch from init.ora file to asp file?