我正在使用ROW_NUMBER按銷售額去排名。查詢看起來像下面row_number分區結果錯誤
SELECT country, SUM(sales) AS sales,
ROW_NUMBER() OVER (PARTITION BY country ORDER BY SUM(sales) DESC) AS 'rank'
FROM table
GROUP BY country
ORDER BY sales DESC
由於某種原因,排名是所有國家之一。
我正在使用ROW_NUMBER按銷售額去排名。查詢看起來像下面row_number分區結果錯誤
SELECT country, SUM(sales) AS sales,
ROW_NUMBER() OVER (PARTITION BY country ORDER BY SUM(sales) DESC) AS 'rank'
FROM table
GROUP BY country
ORDER BY sales DESC
由於某種原因,排名是所有國家之一。
如果通過COUNTRY
,在ROW_NUMBER復位劃分爲1
SELECT country,
SUM(sales) AS sales,
ROW_NUMBER() OVER (ORDER BY SUM(sales) DESC) AS 'rank'
FROM table
GROUP BY country
ORDER BY sales DESC
,因爲你是國家分組,也按國家劃分,你總是會得到每個國家的1排由1.刪除'分區的排名來自'row_number'的國家。 –
'AS'rank''是無效的標準SQL。你正在使用哪個DBMS? –