SQL，在where條件后如何防止行號重置

Question

我有這個查詢：

SELECT ROW_NUMBER() OVER (ORDER BY total_votes desc, views desc, date desc, time desc) AS rn,
name, date, time, subject, full_address, views, total_votes, user_email, typology_name
FROM photo
ORDER BY total_votes desc, views desc, date desc, time desc;

產生這個結果：

.

現在，我想過濾結果表，例如我只看到第 2/3/4 行：

SELECT ROW_NUMBER() OVER(ORDER BY total_votes desc, views desc, date desc, time desc) AS row_num,
name, date, time, subject, full_address, views, total_votes, user_email, typology_name
FROM(
SELECT *, ROW_NUMBER() OVER (ORDER BY total_votes desc, views desc, date desc, time desc) AS rn
FROM photo) q
WHERE rn >= 2 AND rn <= 4 
ORDER BY total_votes desc, views desc, date desc, time desc;

問題是該查詢返回這 3 行，但將 1/2/3 作為 row_num 而不是 2/3/4。

我該怎么做才能看到我在第一個查詢中看到的行號？ 提前致謝。

Answer 1

您正在對外部查詢而不是內部查詢執行第二次行號計算。 所以它返回過濾查詢中的行數。 您應該使用以下代碼：

SELECT rn, name, date, time, subject, full_address, views, total_votes, user_email, typology_name
FROM(
SELECT *, 
ROW_NUMBER() OVER (ORDER BY total_votes desc, views desc, date desc, time desc) AS rn
FROM photo) q
WHERE rn >= 2 AND rn <= 4 
ORDER BY total_votes desc, views desc, date desc, time desc;