Question

当我运行我的烘焙表（WampServer MySQL数据库）时，我收到此错误：

错误：SQLSTATE [42S22]：未找到列：1054'on子句'中的未知列'Users.user_id'

如果您使用SQL关键字作为表列名，则可以在config / app.php中为数据库连接启用标识符引用。

SQL查询：

SELECT `Bookmarks`.`id` AS `Bookmarks__id`, 
       `Bookmarks`.`user_id` AS `Bookmarks__user_id`, 
       `Bookmarks`.`title` AS `Bookmarks__title`, 
       `Bookmarks`.`description` AS `Bookmarks__description`, 
       `Bookmarks`.`url` AS `Bookmarks__url`, 
       `Bookmarks`.`created` AS `Bookmarks__created`, 
       `Bookmarks`.`modified` AS `Bookmarks__modified`,
       `Users`.`id` AS `Users__id`, 
       `Users`.`email` AS `Users__email`, 
       `Users`.`password` AS `Users__password`, 
       `Users`.`created` AS `Users__created`, 
       `Users`.`modified` AS `Users__modified` 
FROM `bookmarks` `Bookmarks` 
    INNER JOIN `users` `Users` ON 
            `Users`.`user_id` = (`Bookmarks`.`user_id`) 
LIMIT 20 OFFSET 0

如果要自定义此错误消息，请创建src\Template\Error\pdo_error.ctp。

Answer 1

在您的用户表格中，主要ID为id而不是user_id;这就是你收到错误的原因。请尝试此查询：

SELECT `Bookmarks`.`id` AS `Bookmarks__id`, 
       `Bookmarks`.`user_id` AS `Bookmarks__user_id`, 
       `Bookmarks`.`title` AS `Bookmarks__title`, 
       `Bookmarks`.`description` AS `Bookmarks__description`, 
       `Bookmarks`.`url` AS `Bookmarks__url`, 
       `Bookmarks`.`created` AS `Bookmarks__created`, 
       `Bookmarks`.`modified` AS `Bookmarks__modified`,
       `Users`.`id` AS `Users__id`, 
       `Users`.`email` AS `Users__email`, 
       `Users`.`password` AS `Users__password`, 
       `Users`.`created` AS `Users__created`, 
       `Users`.`modified` AS `Users__modified` 
FROM `bookmarks` `Bookmarks` 
    INNER JOIN `users` `Users` ON 
            `Users`.`id` = `Bookmarks`.`user_id`
LIMIT 20 OFFSET 0

错误：SQLSTATE [42S22]：找不到列：1054

1 个答案: