What is meant by Join? What are the different types of
Joins available? Explain.

Answer Posted / kilari hemadri

Joins is used to relate two tables and display the result..
types of joins are

inner join
left join
right join
full join
cross join

inner join : It is used to display the common values in
both the tables based on the condition given.

left join : Left join displays all the contents of left
table and dislays the right table contents that are present
in left table.

right join : it is contraversy to left join

full join : it is combination of both left and right joins.

cross join: it takes one row of left table and matches with
all the rows in the right table.

Is This Answer Correct ?    16 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which operator is used in query for pattern matching?

617


Why query optimization is needed?

509


Are dml statements autocommit?

548


Compare sql & pl/sql

600


what are the maximum number of rows that can be constructed by inserting rows directly in value list? : Transact sql

490






What is percent sign in sql?

712


What is trigger in sql? Explain

530


What is implicit cursor in pl sql?

535


what are the advantages of sql ? : Sql dba

539


What is the sql case statement?

568


What is raw datatype in sql?

546


what is the functionality of the function htmlentities? : Sql dba

517


what is the difference between myisam static and myisam dynamic? : Sql dba

579


when is the use of update_statistics command? : Sql dba

496


What are the topics in pl sql?

512