SQL，如何防止在 where 条件后重置行号

Question

我有这个查询：

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;

产生这个结果：

.

现在，我想过滤结果 table 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;

问题是此查询 returns 这 3 行，但将 1/2/3 作为 row_num 而不是 2/3/4。

如何查看在第一个查询中看到的行号？提前致谢。

Answer 1

您正在对外部查询而不是内部查询执行行号的第二次计算。所以它 returns 过滤查询中行的行数。您应该使用此代码：

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;

SQL，如何防止在 where 条件后重置行号

SQL, how to prevent row number reset after where condition

mysql

sql

select

row-number