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Here are a few question-based titles that fit the content of your article: * MySQL Error 1115: What to do when \'utf8mb4\' is Unknown? * Restoring a MySQL Dump: Why is \'utf8mb4\' Not Recognized? * U

Patricia Arquette
Patricia ArquetteOriginal
2024-10-27 16:34:02248browse

Here are a few question-based titles that fit the content of your article:

* MySQL Error 1115: What to do when 'utf8mb4' is Unknown?
* Restoring a MySQL Dump: Why is 'utf8mb4' Not Recognized?
* Upgrading MySQL or Fixing Character Sets: How to Resolve

MySQL Error 1115: Unknown Character Set 'utf8mb4'

When restoring a MySQL dump, you may encounter error 1115, signaling an unknown character set 'utf8mb4'. This error occurs when attempting to import data that utilizes a character set not supported by the current MySQL version.

In this specific case, you are using MySQL 5.1.69, which does not support the 'utf8mb4' character set. This character set was introduced in MySQL version 5.5.3. To resolve this error, it is necessary to upgrade your MySQL installation to a version that supports the 'utf8mb4' character set or use a character set that is compatible with MySQL 5.1.69.

Inspecting the dump reveals that the character set 'utf8mb4' is set for the client, results, and connection. Since your version does not support 'utf8mb4', it fails to recognize and process this character set.

For example, according to the MySQL documentation, 'utf8mb4' is a superset of 'utf8'. Therefore, it might be possible to convert the character set to 'utf8' when exporting the dump and importing it into MySQL 5.1.69. However, this approach may introduce data compatibility issues and is not recommended unless the data is known to be compatible with 'utf8'.

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