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Question
could u plz explain about joins and views?
 Question Submitted By :: Sarathraj
I also faced this Question!!     Rank Answer Posted By  
 
  Re: could u plz explain about joins and views?
Answer
# 1
basically we use joins to query a sql with 1 or more tables.
1) self join.. join within the same table using aliases
2) equi join.. join between the 2 tables with commom columns
3) outer join.. and it is divided into 2 catagories left 
outer join and right outer join.

View :- its a logical representation of one or more tables.
View doesn't have the data of its own. But still you can 
perform DML on a view ..the changes will be done in the 
underlying base tables..
 
Is This Answer Correct ?    1 Yes 0 No
Mohsin Mohammed Abdul
 
  Re: could u plz explain about joins and views?
Answer
# 2
VIEWS
View is a virtual table
If we want to access specific column from specific table we
can go for views
JOINS
Sometimes we have to select data from two or more tables to
make our result complete we have to perform join
 
Is This Answer Correct ?    3 Yes 0 No
Vimal
 
 
 

 
 
 
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