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Update laboratory2.sql #122

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36 changes: 36 additions & 0 deletions km63/Hryhorenko_Anastasiia/laboratory2.sql
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Original file line number Diff line number Diff line change
@@ -1,2 +1,38 @@
-- LABORATORY WORK 2
-- BY Hryhorenko_Anastasiia
/*---------------------------------------------------------------------------
1. Вивести постачальників, що не продали жодного продукту та живуть в Америці.

---------------------------------------------------------------------------*/
--Код відповідь:
SELECT VEND_ID
FROM(
(SELECT VEND_ID
FROM Vendors
WHERE (VEND_COUNTRY ='USA')

MINUS

(SELECT VEND_ID
FROM Vendors RIGHT JOIN Products
ON (Vendors.VEND_ID = Products.VEND_ID)
RIGHT JOIN OrderItems
ON (Products.PROD_ID = OrderItems.PROD_ID)
GROUP BY VEND_ID)
);


/*---------------------------------------------------------------------------
2. Вивести номер найдешевшого замовлення та кількість товарів у ньому.

---------------------------------------------------------------------------*/

--Код відповідь:

SELECT ORDER_NUM, SUM(QUANTITY)
FROM
(SELECT ORDER_NUM, SUM(QUANTITY), SUM(ITEM_PRICE))
FROM OrderItems
GROUP BY ORDER_NUM
)
WHERE (SUM(ITEM_PRICE) = MIN(SUM(ITEM_PRICE)));