Types of joins ?
Answers were Sorted based on User's Feedback
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>
Is This Answer Correct ? | 0 Yes | 1 No |
What are the most important ddl statements in sql?
1. is it possible to use the cursor atttibutes (%found ,% rowcount , %isopen , %notfound ) to our user defined cursor names ....... cursor cursor_name is select * from scott.emp if you use... cursor_name%found , %rowcount ,%isopen,%notfound...will it work... -------------------------- 2.what is the difference between the varray and index by table .. -------- 3. type type_name is table of number(8,3) index by binary_integer; identifier_name type_name; first , last , prior , next ,trim are the methods we can use it for the above type...simillary is there any way to apply for cursors... with thanks and regards..sarao...
Write a procedure to return the month and the number of developers joined in each month (cursor )
What are procedures used for?
What is the difference between an inner join and an outer join?
how would you enter characters as hex numbers? : Sql dba
How many types of index are there?
What is information schema in sql?
what are the types of join and explain each? : Sql dba
How many sql statements are used?
How does sql*loader handles newline characters in a record? : aql loader
How would you reference column values before and after you have inserted and deleted triggers?