Interested to Buy Any Domain ? << Click Here >> for more details...
What are the advantages of VIEW?
- 5 Answers
- 34079 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / vinay dixit
please find the advantages as given below :-
a) data security - no need to give permission on the table,
infact a view can be created, having only selected number
of coloums in its definition. So user will only be able to
see those coloums.
b) simplicity - a very complicated query can be saved as a
view defenition. when needed can be called by its view name.
c) removes dependency - Can be very helpful to remove the
dependecny from the underlying tables. Suppose a view is
created by joining several tables. After some time, there
are some changes on the tables, so only defenition of view
can be changed and there is no need to change all the code
where view is used.
d) No space - takes no space ( except materialized view )
| Is This Answer Correct ? | 61 Yes | 4 No |
Answer / anil_abbireddy
1. data security : complex view can not be modified ie.
base tables cannot be visible.
2. it provides easy way to query data from different data
sources like a single table
3.it is very usefull when developing complex reports basing
on multiple tables.
| Is This Answer Correct ? | 38 Yes | 4 No |
Answer / pnc
view is a logical presentation of one or more tables. It is
a virtual table. or A view is a data base object to register
the select statement permanently in the data base.
| Is This Answer Correct ? | 17 Yes | 6 No |
Answer / karunakarreddy.boyapally
1) it reduse the object size
2) hides the complexity of data
3) security purpose also
| Is This Answer Correct ? | 12 Yes | 3 No |
Answer / kapil syscom
View is simple structure as table in database, it dosen't take extra memory space, and reduces the structural complexity of database whenever we need to fetch the data from more than one table, thus it reduces the cost of joins every time.
Thus these is true that we have to use it for efficiency reasons..
| Is This Answer Correct ? | 5 Yes | 6 No |
what is a field in a database ? : Sql dba
how to use in conditions? : Sql dba
Does truncate require commit?
Why do we go for stored procedures?
Which one is better sql or oracle?
Is pl sql and postgresql same?
How can you create Cursor with parametres ?
What is integrity constraints?
What is the difference between nvl function, ifnull function, and isnull function?
Explain commit, rollback and savepoint.
Why indexing is needed?
check whether all the emp numbers are indeed unique.
-
Oracle (3259) - SQL Server (4518)
- MS Access (429)
- MySQL (1402)
- Postgre (483)
- Sybase (267)
- DB Architecture (141)
- DB Administration (291)
- DB Development (113)
- SQL PLSQL (3330)
- MongoDB (502)
- IBM Informix (50)
- Neo4j (82)
- InfluxDB (0)
- Apache CouchDB (44)
- Firebird (5)
- Database Management (1411)
- Databases AllOther (288)
