Question: I have a table named 'Sample' with the following columns: order_category, customer_number, product_number,product_type, sales_value,month, year Write SQL query to perform the following: 1. Write an

I have a table named 'Sample' with the following columns: order_category, customer_number, product_number,product_type, sales_value,month, year Write SQL query to perform the following:

1. Write an SQL query that includes the GROUPING SETS statement.

2. Write an SQL query that includes window functions.

3. Write three SQL queries that include several different analytical SQL functions

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