Materialized views are similar to regular views, in that they are a logical view of your data (based on a select statement), however, the underlying query resultset has been saved to a table. The upside of this is that when you query a materialized view, you are querying a table, which...
A materialized view (MV) is similar to a view but the data is actually stored on disk (view that materializes). Materialized views are often used for summary and pre-joined tables, or just to make a snapshot of a table available on a remote system. A MV must be refreshed when the d...
A materialized view has already done that heavy lifting in the background and stored it into a hidden table (the "concrete table" you mention). So, when you SELECT from such, it is as simple as it looks -- it is just a SELECT from that hidden table. This is a performance gain duri...
In designing my application data stores, I‘ve realized how crucial it is to understand the role of materialized views from the beginning. Like many developers and database experts, I often focused more on the storage aspects of data. However, I’ve learned that data retrieval is just as im...
Materialized Views and Logs Synonyms (public and private) Database Links Directories XML Schemas Queue Tables and queues Java Jobs Recycle Bin (10g and above) Other Users Tabbed display of details specific to each object type Objects are grouped together by type. For each object type, a filter...
SSMA for Oracle allows you to migrate Materialized Views as regular tables (configurable through the settings at Project Settings -> Synchronization -> Discover backing tables for Materialized Views). SSMA v7.6 The v7.6 release of SSMA for Oracle is enhanced with targeted fixes that improve quality...
disc.Like a view in Materialized view we are using simple select statement to create it.You should havecreate materialized viewprivileges to create a materialized view.Definition of materialized view(called as MV) has been stored in databases.Materialized views are useful in Data-warehousing concepts...
The following new features affect materialized views for OLAP cubes. Specifying attribute column names for materialized views. With thesetETAttrPrefixmethod of theMdmDimensionalityobject for a dimension of an OLAP cube, you can specify the prefix that Oracle OLAP uses in naming the columns for the ...
Using the Metadata Differ to Compare Object Metadata and Correct the Differences Oracle Database 11g release 2 provides SXML support for the following object types: • AQ_QUEUE • AQ_QUEUE_TABLE • CLUSTER • CONTEXT • DB_LINK • FGA_POLICY • INDEX • MATERIALIZED_V...
When you duplicate from a target database, RMAN determines if any excluded tablespaces contain SYS-owned objects, materialized views, and identifies tablespaces that are not self-contained before starting any duplication operations. See Also: Chapter 24, "Duplicating a Database", and Oracle Database...