/* Query 4. Find products that satisfy BOTH conditions below: (a) Its unit price

Question

/* Query 4.

Find products that satisfy BOTH conditions below:

(a) Its unit price must NOT below $22.

(b) Its category ID is 4 or 7 or 8. If its category ID is 1 or 3, then it

must

have at least 40 units in stock.

Display their ProductID, UnitPrice, CategoryID, and UnitsInStock. The

output should

be sorted by CategoryID in A -> Z order (i.e., from smallest to largest).

For those

with the same CategoryID, the one with the highest UnitPrice should be

displayed first.

Hint 1: a compound condition with AND, OR, NOT.

Hint 2: correct output has 16 products.

*/

Explanation / Answer

--Asumptions: Table name asumed as Products. Please change table if wrong. Please find query below

SELECT ProductID,UnitPrice,CategoryID,UnitsInStock FROM Products
WHERE UnitPrice>=22 AND CategoryID in (4,7,8) or CategoryID in
(SELECT CategoryID FROM Products WHERE CategoryID in (1,3) and UnitPrice >=40) ORDER BYCategoryID ASC;

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