phpmyadmin 正在尝试将WHERE子句添加到Mysql查询

f0brbegy 于 2022-11-09 发布在 PHP

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我尝试在这里添加一个where子句：

select `submission_id`, 
       max(case when `key` = 'id_usuario' then value end) as user,
       max(case when `key` = 'date_atualizado' then value end) as Data,
       max(case when `key` = 'peso' then value end) as Peso
from wp_e_submissions_values
group by `submission_id`

它工作得很好！但是我需要添加WHERE 'user' = 1

select `submission_id`, 
       max(case when `key` = 'id_usuario' then value end) as user,
       max(case when `key` = 'date_atualizado' then value end) as Data,
       max(case when `key` = 'peso' then value end) as Peso
from wp_e_submissions_values
WHERE 'user' = 1
group by `submission_id`

我在FROM之后添加了...但它不起作用。我收到以下错误：

Attention: #1292 Truncated wrong DOUBLE value: 'user'

你们能帮帮我吗？

phpmyadmin

来源：https://stackoverflow.com/questions/73417846/trying-to-add-a-where-clause-to-mysql-query

1条答案

按热度按时间

wi3ka0sx1#

仔细阅读您的问题后，看起来user上的Assert应该发生在HAVING子句中，而不是WHERE子句中。

SELECT
    submission_id,
    MAX(CASE WHEN `key` = 'id_usuario' THEN value END) AS user,
    MAX(CASE WHEN `key` = 'date_atualizado' THEN value END) AS Data,
    MAX(CASE WHEN `key` = 'peso' THEN value END) AS Peso
FROM wp_e_submissions_values
GROUP BY submission_id
HAVING user = 1;

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phpmyadmin 正在尝试将WHERE子句添加到Mysql查询

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