amazon-redshiftHow do I create an Amazon Redshift materialized view?
Creating a materialized view in Amazon Redshift requires the following steps:
- Create a view using the
CREATE VIEWcommand. This command defines the query that will be used to populate the materialized view. For example:
CREATE VIEW my_view AS SELECT a, b, c FROM table1
- Create the materialized view using the
CREATE MATERIALIZED VIEWcommand. This command defines the physical storage for the materialized view and the refresh interval. For example:
CREATE MATERIALIZED VIEW my_mview FROM my_view REFRESH EVERY 1 DAY
- Refresh the materialized view using the
REFRESH MATERIALIZED VIEWcommand. This command will populate the materialized view with the data from the view. For example:
REFRESH MATERIALIZED VIEW my_mview
- To verify the materialized view was created successfully, use the
SELECTcommand to query the materialized view. For example:
SELECT * FROM my_mview
For more information on creating and managing materialized views in Amazon Redshift, see the Redshift Documentation.
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