What indexes could you add to help a query that selects the count of catalog items each supplier supplies? What indexes could you add to help a query that selects the count of orders per customer? What indexes could you add to help a query that selects the count of the number of items in each customer order? What indexes could you add to help a query that selects the average number of item quantities in each customer orders? Could an index help a sub-query to select the difference between the average overall order item quantity and the average number of item quantities in each customer orders?

What indexes could you add to help a query that selects the count of catalog items each supplier supplies? What indexes could you add to help a query that selects the count of orders per customer? What indexes could you add to help a query that selects the count of the number of items in each customer order? What indexes could you add to help a query that selects the average number of item quantities in each customer orders? Could an index help a sub-query to select the difference between the average overall order item quantity and the average number of item quantities in each customer orders?

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1.What is the result when the following SQL query is executed on a table named products? Choose the most correct answer. SELECT AVG(Products)FROM Products; Group of answer choices The query results in an error because the is no AVG function None of the above The query results in an error be cause a column is not specified The query returns the average of the Products table 2. If the primary key in the Employee table is located in the "ID" column what is the maximum number of results the following SQL SELECT query will return? SELECT *FROM EmployeeWHERE ID = 15; Group of answer choices 2 1 3 Do not have enough information to determine the answer 0
How are clustered and non-clustered indexes different in SQL?