Updating materialized view

DB2, Oracle, SQL Server, have been successfully developed completely enough with materialized views so far.

It depends on the requirements how often a Materialized View is refreshed and how actual its content is.Materialized views cause hotspots when low cardinality data is inserted.Materialized views are logically excess stored query results in SQL-oriented databases.In contrast, in a normal view, it's typically only possible to exploit indexes on columns that come directly from (or have a mapping to) indexed columns in the base tables; often this functionality is not offered at all. A materialized view is a table that is built from another table's data with a new primary key and new properties.

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