can a view be updated?

Question Posted / jakki

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can a view be updated?..

Answer / yogesh babu

yes it can be updated ....but there are certain
restrictions in it.
For eg:
1.a view created from nonupdatable view cant be updated
2.when it is having having , groupby,orderby it cant be
updated.etc

Is This Answer Correct ?

9 Yes

1 No

can a view be updated?..

Answer / kumar

View can be updated ...but some restrictions are there.

Let us think we are using one or more tables to create a
view and if the view contains all the NOT NULL constraint
columns of the tables, then only we can update the view or
else we can't.

Is This Answer Correct ?

4 Yes

1 No

can a view be updated?..

Answer / chandana

Yes,Views can be updated but there are some conditions.
-> Depending on type of view ie
Simple views can be updated
Complex views may or may not be updated.
One cannot Perform DML Operations on Complex view
if it contains
1. Group by clause
2. Group functions
3. Distinct
4. Pseudocolumn rownum

One cannot modify the view if it has
1. Group by clause
2. Group functions
3. Distinct
4. Pseudocolumn rownum
5. Columns by expressions

One cannot insert data into views if it has

1. Group by clause
2. Group functions
3. Distinct
4. Pseudocolumn rownum
5. Columns by expressions
6. NOT NULL columns in base table that are not selected in
view

Is This Answer Correct ?

3 Yes

3 No

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