Group By
๊ตฌ๋ฌธ
SELECT
column, column2 ... function(column) [ex. COUNT]
FROM
member
WHERE
column_condtion
GROUP BY column์คํ ์์
์
SELECT
YEAR(orderDate) AS year,
SUM(quantityOrdered * priceEach) AS total
FROM
orders
INNER JOIN orderdetails
USING (orderNumber)
WHERE
status = 'Shipped'
GROUP BY
YEAR(orderDate);๋ณ์นญ
์ ๋ ฌ
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