This error indicates that there is no column named 'level' in the table or view that is referenced in the HAVING clause of the SQL query. To resolve this error, you need to check the spelling and case of the column name to make sure it is correct. Also, ensure that the column is present in the table or view being queried. If not, you may need to add the column to the table or modify the SQL query to reference a different column that exists翻译

此错误表示HAVING子句引用的表或视图中不存在名为'level'的列。要解决此错误，需要检查列名的拼写和大小写，以确保正确性。同时，确保该列存在于正在查询的表或视图中。如果不存在，您可能需要将该列添加到表中或修改SQL查询以引用存在的不同列。

相关问题

出现错误This error indicates that the function init() is not defined for the object _router. It is possible that there is a typo in the code where the function is being called, or that the object router is not being instantiated correctly. To resolve this error, check the code and ensure that the function init() is defined for the object _router. If it is not, implement or import the necessary code.

作为一名AI语言模型，无法直接获得您的代码以检查并排除问题。但是，根据错误信息，您可以尝试以下解决方法：

1. 检查代码是否存在任何拼写错误或语法错误，并纠正它们。
2. 确保对象_router被正确实例化，并已成功实例化。
3. 找到init()函数的定义，并确保在_router对象中调用该函数。如果没有定义init()函数，实现或导入必要的代码以定义它。

如果仍然存在问题，请检查您的日志以获取有关更详细信息，并尝试使用调试工具或与同事或开发人员一起查看代码以解决问题。

翻译This error message indicates that there is a problem with the username or password used to access a database. The user 'root' has been denied access to the database at localhost using the specified password. This could be due to a wrong password or incorrect permissions. To resolve the issue, ensure that the correct username and password are being used and that the user has the necessary permissions to access the database.

此错误信息表明访问数据库时使用的用户名或密码存在问题。用户“root”在使用指定密码访问位于本地主机的数据库时遭到拒绝。这可能是密码错误或权限不正确导致的。为解决此问题，请确保正在使用正确的用户名和密码，并且该用户具有访问数据库所需的必要权限。