amazon-redshiftHow do I create an Amazon Redshift materialized view?

Creating a materialized view in Amazon Redshift requires the following steps:

1. Create a view using the CREATE VIEW command. 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

2. Create the materialized view using the CREATE MATERIALIZED VIEW command. 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

3. Refresh the materialized view using the REFRESH MATERIALIZED VIEW command. This command will populate the materialized view with the data from the view. For example:

REFRESH MATERIALIZED VIEW my_mview

4. To verify the materialized view was created successfully, use the SELECT command 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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