Solved: Error 1273 Unknown Collation utf8mb4_0900_ai_ci in MySQL

 If you're working with MySQL and you encounter the error message "Error 1273 Unknown Collation utf8mb4_0900_ai_ci", it can be frustrating and confusing. This error message typically indicates that your database is running on a version of MySQL that doesn't support the collation you're using.

The collation utf8mb4_0900_ai_ci was introduced in MySQL version 8.0.1, so if you're using an earlier version of MySQL, you may encounter this error message. To resolve this issue, you have a few options:

  • Upgrade to a newer version of MySQL: If you're not already using MySQL 8.0.1 or later, upgrading to a newer version should resolve the issue. Make sure to backup your database before upgrading.
  • Change the collation: If upgrading to a newer version of MySQL isn't an option, you can try changing the collation to one that's supported by your version of MySQL. For example, changing the collation to utf8mb4_unicode_ci should work with earlier versions of MySQL.
  • Modify the MySQL configuration: If you're unable to upgrade or change the collation, you can modify the MySQL configuration to allow unsupported collations. To do this, you'll need to add the following line to your my.cnf or my.ini file: "innodb_large_prefix=true".

By taking one of these steps, you should be able to resolve the "Error 1273 Unknown Collation utf8mb4_0900_ai_ci" issue and continue working with your MySQL database.


Resources:

https://magentoexpertforum.com/showthread.php/34705-Solved-Error-1273-Unknown-Collation-utf8mb4_0900_ai_ci-in-MySQL

https://meetanshiblog.quora.com/Solved-Error-1273-Unknown-Collation-utf8mb4_0900_ai_ci-in-MySQL

https://www.reddit.com/user/Early_Vermicelli7505/comments/11705p3/solved_error_1273_unknown_collation_utf8mb4_0900/

https://in.pinterest.com/pin/833377106066147561/

https://viesearch.com/1w5jc/solved-error-1273-unknown-collation-utf8mb4-0900-ai-ci-in-mysql

https://list.ly/list/7rm0-best-magento-tips-and-solution-blogs#item_8534436

https://steemit.com/magento/@allensmith/solved-error-1273-unknown-collation-utf8mb40900aici-in-mysql

https://ko-fi.com/allensmith?viewimage=IF1F4IW1J1#galleryItemView

http://www.video-bookmark.com/bookmark/5625111/solved:-error-1273-unknown-collation-utf8mb4_0900_ai_ci-in-mysql/

https://flipboard.com/@AllenSmith2hv1/-50-blogging-statistics-you-need-to-know/a-ELOb1YupSXS_Z-sonUZJiA%3Aa%3A3950689061-8d5ea2ce3e%2Fmeetanshi.com

https://www.diigo.com/annotated/3debb9b3e80478f3d193c3f743e31318

https://adfty.biz/technology/solved-error-1273-unknown-collation-utf8mb4-0900-ai-ci-in-mysql/

https://www.scoop.it/topic/allensmith/p/4141229603/2023/02/20/50-blogging-statistics-you-need-to-know-2023

https://www.uplabs.com/posts/solved-error-1273-unknown-collation-utf8mb4_0900_ai_ci-in-mysql

https://meetanshi.wordpress.com/2023/02/20/solved-error-1273-unknown-collation-utf8mb4_0900_ai_ci-in-mysql/

https://meetanshi.blogspot.com/2023/02/solved-error-1273-unknown-collation.html

https://dribbble.com/shots/20701066-Solved-Error-1273-Unknown-Collation-utf8mb4-0900-ai-ci-in-MySQL

https://637c59844644b.site123.me/blog/solved-error-1273-unknown-collation-utf8mb4_0900_ai_ci-in-mysql

https://www.vingle.net/posts/5354872

https://www.storeboard.com/blogs/technology/solved-error-1273-unknown-collation-utf8mb4_0900_ai_ci-in-mysql/5573808

https://www.symbaloo.com/shared/AAAAAjXJ2mEAA41_HpCB9g==

https://www.anibookmark.com/site/solved-error-1273-unknown-collation-utf8mb4-0900-ai-ci-in-mysql-ab1051935.html

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