Materialized view commands

The syntax and examples of materialized view commands provide details for using materialized views in Unified Analytics.

ALTER MATERIALIZED VIEW REBUILD
You must rebuild the materialized view to keep it up-to-date when changes to the data occur.
ALTER MATERIALIZED VIEW REWRITE
You can change the behavior of Hive to enable or disable the rewriting of queries based on a particular materialized view.
CREATE MATERIALIZED VIEW
If you are familiar with the CREATE TABLE AS SELECT (CTAS) statement, you can quickly master how to create a materialized view.
DESCRIBE EXTENDED and DESCRIBE FORMATTED
You can get extensive formatted and unformatted information about a materialized view.
DROP MATERIALIZED VIEW
You can avoid making a table name unusable by dropping a dependent materialized view before dropping a table.
SHOW MATERIALIZED VIEWS
You can list all materialized views in the current database or in another database. You can filter a list of materialized views in a specified database using regular expression wildcards.

Parent topic: Materialized views