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https://community.oracle.com/thread/2216092
May 05, 2011 · This content has been marked as final. 1. Re: Materialized View in 11g XE orafad Apr 27, 2011 10:14 PM (in response to 434444) MV log is associated with a master, which is a EE only feature (Advanced replication), at least what you could tell from available licensing info.
https://docs.oracle.com/cd/B28359_01/server.111/b28326/repmview.htm
A materialized view log is required on a master if you want to perform a fast refresh on materialized views based on the master. When you create a materialized view log for a master table or master materialized view, Oracle creates an underlying table as the materialized view log. A materialized view log can hold the primary keys, rowids, or object identifiers of rows, or both, that have been …
https://www.databasejournal.com/features/oracle/article.php/2192071/Materialized-Views-in-Oracle.htm
Apr 18, 2003 · Materialized Views in Oracle. A materialized view in Oracle is a database object that contains the results of a query. They are local copies of data located remotely, or are used to create summary tables based on aggregations of a table's data. Materialized views, which store data based on remote tables are also, know as snapshots.
https://logicalread.com/2015/05/30/materialized-views-improve-oracle-database-12c-performance-mc05/
Oracle Database 12c allows for synchronous refreshes of the materialized views when configured to use a refresh method besides manual or on-demand. It utilizes partitioning and dependencies between the objects to minimize the time it takes to refresh and maintain the …
https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:349809082244
1. In data warehouses, materialized views are used to precompute and store aggregated data such as sums and averages. 2. In distributed environments, materialized views (also called snapshots) are used to replicate data at distributed sites and synchronize updates done at …
https://stackoverflow.com/questions/12705306/how-to-get-list-of-all-materialized-views-in-oracle
How to get list of all materialized views in oracle. Ask Question Asked 7 years, 1 month ago. Active 3 years, 10 months ago. Viewed 88k times 24. 4. How to get list of all Materialized Views.? oracle. share improve this question. asked Oct 3 '12 at 9:13. Software Sainath Software Sainath.
https://docs.oracle.com/database/121/DWHSG/refresh.htm
For materialized views that use the log-based fast refresh method, a materialized view log and/or a direct loader log keep a record of changes to the base tables. A materialized view log is a schema object that records changes to a base table so that a materialized view defined on the base table can be refreshed incrementally.
https://stackoverflow.com/questions/93539/what-is-the-difference-between-views-and-materialized-views-in-oracle
In addition, with query rewrite enabled, Oracle can optimize a query that selects from the source of your materialized view in such a way that it instead reads from your materialized view. In situations where you create materialized views as forms of aggregate tables, or as copies of frequently executed queries, this can greatly speed up the response time of your end user application.
https://www.java67.com/2012/11/what-is-difference-between-view-vs-materialized-view-database-sql.html
See Oracle PL/SQL Programming: Covers Versions Through Oracle Database 12c for more details on materialized view in Oracle. 3) One more difference between View and materialized view in the database is that In case of View we always get latest data but in case of Materialized view we need to refresh the view for getting latest data.
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