https://docs.snowflake.com/en/user-guide/views-materialized
- A materialized view can query only a single table.
- Joins, including self-joins, are not supported.
Materialized views can be created on a single table or on multiple tables. The underlying query of a materialized view can contain any valid Snowflake query, including joins, aggregations, and window functions.
CREATE MATERIALIZED VIEW my_view
AS
SELECT
customer_id,
customer_name,
order_id,
order_date
FROM
customers
JOIN orders
ON customers.customer_id = orders.customer_id;
CREATE MATERIALIZED VIEW my_view
AS
SELECT
customer_id,
SUM(order_total) AS total_order_amount
FROM
orders
GROUP BY
customer_id;
https://docs.snowflake.com/en/user-guide/views-materialized
- A materialized view can query only a single table.
- Joins, including self-joins, are not supported.
Answer is A
The following limitations apply to creating materialized views:
A materialized view can query only a single table.
Joins, including self-joins, are not supported.
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