Mysql获取行号

我有一张这样的 table

+------+----------+------------+
|   id |  1_value |   2_value  |
+------+----------+------------+
|    3 |   foo1   |   other    |
|   10 |   fooX   |   stuff    |
|   13 |   fooJ   |   here     |
|   22 |   foo7   |   and      |
|   31 |   foou   |   here     |
+------+----------+------------+

我想得到的是行号

我试过做这样的事情

SELECT  id, @curRow := @curRow + 1 AS row_number
FROM    table
JOIN    (SELECT @curRow := 0) r

它确实有效......

+------+--------------+
|   id |  row_number  |
+------+--------------+
|    3 |   1          |
|   10 |   2          |
|   13 |   3          |
|   22 |   4          |
|   31 |   5          |
+------+--------------+

但是如果我尝试选择特定行怎么办？

SELECT  id, @curRow := @curRow + 1 AS row_number
FROM    srwk_esp_registration
JOIN    (SELECT @curRow := 0) r
WHERE ID = 22

在这种情况下，row_number 是 1，但它应该是 4。

我怎样才能做到这一点？

最佳答案

尝试使用子查询:

SELECT *
FROM (
    SELECT id,
        @curRow := @curRow + 1 AS row_number
    FROM srwk_esp_registration
    JOIN (
        SELECT @curRow := 0
        ) r
    ) sub
WHERE sub.ID = 22

关于Mysql获取行号，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/47677063/