How do you fix Ora 01732 data manipulation operation not legal on this view?
As we see, the ORA-01732 can be fixed by issuing the DML against the base tables. The best on site “Oracle training classes” are just a phone call away! You can get personalized Oracle training by Donald Burleson, right at your shop!
Can we update view in Oracle?
Answer: A VIEW in Oracle is created by joining one or more tables. When you update record(s) in a VIEW, it updates the records in the underlying tables that make up the View. So, yes, you can update the data in an Oracle VIEW providing you have the proper privileges to the underlying Oracle tables.
Can we insert data into materialized view Oracle?
You can’t insert data into a materialized view as you can with a table. To update the contents of a materialized view, you can execute a query to refresh it. This will re-execute the query used to create it. Executing this refresh query will lock the materialized view so it can’t be accessed while refreshing.
How do you update a materialized view in Oracle?
Use the ALTER MATERIALIZED VIEW statement to modify an existing materialized view in one or more of the following ways:
- To change its storage characteristics.
- To change its refresh method, mode, or time.
- To alter its structure so that it is a different type of materialized view.
- To enable or disable query rewrite. Note:
Are views updatable?
Yes, they are updatable but not always. Views can be updated under followings: If the view consists of the primary key of the table based on which the view has been created.
What is non updatable view?
It means that the server always knows whether a view is updatable. If a view is not updatable, statements such UPDATE , DELETE , and INSERT are illegal and are rejected. (Even if a view is updatable, it might not be possible to insert into it, as described elsewhere in this section.)
Can we perform DML operations on materialized views?
Users can perform DML operations on a writeable materialized view, but if you refresh the materialized view, then these changes are not pushed back to the master and the changes are lost in the materialized view itself.
Why does materialized view become invalid?
A materialized view is like any other view in that it is based on one or more underlying base tables. Because of this, a change in the structure of an underlying table could cause the view based on the table to become invalid.
Can we update materialized views?
You can’t insert data into a materialized view as you can with a table. To update the contents of a materialized view, you can execute a query to refresh it. This will re-execute the query used to create it.
Which statement is not valid for an updatable view SQL?
If a view is not updatable, statements such UPDATE , DELETE , and INSERT are illegal and are rejected.