ERROR 1347 (HY000): 'mysql.user' is not of type 'BASE TABLE'

这个错误通常出现在升级 MySQL 版本时，因为在旧版本中，`mysql.user`表是 MyISAM 引擎，而在新版本中，该表被改为了 InnoDB 引擎。这可能会导致引擎类型不兼容的问题。

要解决这个问题，可以执行以下步骤：

1.备份 MySQL 数据库。

2.将 `mysql.user` 表从 InnoDB 引擎转换为 MyISAM 引擎。可以使用以下命令：

ALTER TABLE mysql.user ENGINE=MyISAM;

3.执行以下命令来修复表：

mysqlcheck -r mysql user

4.将 `mysql.user` 表从 MyISAM 引擎转换回 InnoDB 引擎。可以使用以下命令：

ALTER TABLE mysql.user ENGINE=InnoDB;

5.重启 MySQL 服务。

如果上述步骤无法解决问题，可以尝试重新安装 MySQL 服务或者联系 MySQL 官方技术支持。

相关问题

server error TypeError: salt.charAt is not a function

As an AI language model, I am not able to identify the exact cause of this error without more context or code. However, based on the error message provided, it seems that there is an issue with a function called "charAt" not being recognized as a function in the context of a variable called "salt".

Here are a few potential reasons why this error might be occurring:

1) The "salt" variable may not be defined or initialized correctly, causing the function to throw an error when it tries to access its properties or methods.
2) The "charAt" function may not be defined or imported correctly in the code, causing it to be unrecognized as a function.
3) There might be a typo or syntax error in the code that is causing the function to fail.

To resolve this error, you could try the following steps:

1) Check that the "salt" variable is properly defined and initialized in the code.
2) Ensure that the "charAt" function is properly defined or imported in the code, and that it is being called correctly.
3) Check for any typos or syntax errors in the code that might be causing the function to fail.
4) Consult any relevant documentation or resources for the function or variable in question to see if there are any known issues or solutions.

Uncaught TypeError: document. forms is not a function

The error message "Uncaught TypeError: document.forms is not a function" means that you are trying to use the method "forms()" on the "document" object, but it is not a function.

Here are a few possible reasons for this error:

1. The "forms" property may not be defined on the "document" object in your browser or environment.
2. There may be a conflict with another script that is redefining or overwriting the "document.forms" method.
3. There may be a syntax error or typo in your code that is causing the error.

To resolve this error, you can try the following steps:

1. Check your code for any syntax errors or typos that may be causing the problem.
2. Make sure that the "forms" property is supported on the "document" object in your browser or environment.
3. Try renaming the "forms" property to something else to avoid conflicts with other scripts. For example, you could use "myForms" instead of "forms".
4. Try using a different method or property to access the forms on the page, such as "document.getElementsByTagName('form')" or "document.querySelectorAll('form')".