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What privilege is required for materialized view?
To create a materialized view in another user’s schema: You must have the CREATE ANY MATERIALIZED VIEW system privilege. The owner of the materialized view must have the CREATE TABLE system privilege.
What is complex materialized view Oracle?
If you require a materialized view whose defining query is more general and cannot observe the restrictions, then the materialized view is complex and cannot be fast refreshed. Specifically, a materialized view is considered complex when the defining query of the materialized view contains: A CONNECT BY clause.
Why materialized view is used?
You can use materialized views to achieve one or more of the following goals: Ease Network Loads. Create a Mass Deployment Environment. Enable Data Subsetting.
What is difference between object and Rowid materialized view?
2) Another difference between View vs materialized view is that, when we create a view using any table, rowid of view is the same as the original table but in the case of Materialized view rowid is different. 4) Performance of View is less than Materialized view.
What is the difference between view and materialized view?
The basic difference between View and Materialized View is that Views are not stored physically on the disk. View can be defined as a virtual table created as a result of the query expression. However, Materialized View is a physical copy, picture or snapshot of the base table.
Can materialized view be updated?
Materialized views are disc-stored views that can be refreshed. 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.
What happens when you create a materialized view in Oracle?
When you create a materialized view, Oracle Database creates one internal table and at least one index, and may create one view, all in the schema of the materialized view. Oracle Database uses these objects to maintain the materialized view data. You must have the privileges necessary to create these objects.
Do you have to have create any materialized view privilege?
You must have the CREATE ANY MATERIALIZED VIEW system privilege. The owner of the materialized view must have the CREATE TABLE system privilege.
Are there Oracle schema privileges for other users?
Oracle Schema Privileges Other Users Ask Question Asked4 years, 4 months ago Active3 years, 2 months ago Viewed5k times 0 1 I have a user with only CONNECT privileges and I’d like to know if RESOURCE would be enough to query objects in other schemas and create objects in my own schema based on that.
How to create Materialized View with query rewrite enabled?
To create the materialized view with query rewrite enabled, in addition to the preceding privileges: If the schema owner does not own the master tables, then the schema owner must have the GLOBAL QUERY REWRITE privilege or the QUERY REWRITE object privilege on each table outside the schema.