What is a materialized table used for?
A materialized view can query tables, views, and other materialized views. Collectively these are called master tables (a replication term) or detail tables (a data warehouse term). For replication purposes, materialized views allow you to maintain copies of remote data on your local node. These copies are read-only.
What is a materialized view how is it different from a view what are benefits of a materialized view?
Differences between Views and Materialized Views:
| Views | Materialized Views |
|---|---|
| Views are useful when the view is accessed infrequently. | Materialized views are efficient when the view is accessed frequently as it saves the computation time by storing the results before hand. |
What is a materialized table?
A materialized query table (MQT) is a table whose definition is based upon the result of a query. The data that is contained in an MQT is derived from one or more tables on which the materialized query table definition is based.
When should materialized views be used?
In data warehouses, you can use materialized views to precompute and store aggregated data such as the sum of sales. Materialized views in these environments are often referred to as summaries, because they store summarized data. They can also be used to precompute joins with or without aggregations.
Is a materialized view a table?
A materialized view is a database object that contains the results of a query. The FROM clause of the query can name tables, views, and other materialized views. Collectively these objects are called master tables (a replication term) or detail tables (a data warehousing term).
Why to use a materialized view instead of a table?
then you can use materialized views to distribute your corporate database to regional sites.
When to use a materialized view?
Materialized views are primarily used to increase application performance when it isn’t feasible or desirable to use a standard view with indexes applied to it. Materialized views can be updated on a regular basis either through triggers or by using the ON COMMIT REFRESH option.
What is the differene between a view and table?
while a table is a database object or an entity
What is the difference between views and materialized views?
The basic difference between View and Materialized View is that Views are not stored physically on the disk. On the other hands, Materialized Views are stored on the disc. View can be defined as a virtual table created as a result of the query expression.